NWS Chicago
@NWSChicago

Official X account for the National Weather Service Chicago. Details: weather.gov/nws_x

 Romeoville, IL
weather.gov/chicago
Joined July 2012
30,381 Photos and videos
Seasonable temperatures will continue over the next several days. The next opportunity for widespread rainfall in the region won’t come until midweek. #ILwx #INwx
This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Seasonable temperatures to continue with widespread rain chances returning midweek. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Saturday, September 26, 2026 3:09 AM CDT

ALT This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Seasonable temperatures to continue with widespread rain chances returning midweek. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Saturday, September 26, 2026 3:09 AM CDT
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A quiescent pattern will prevail through early next week. The next opportunity for widespread soaking rainfall is favored toward the middle of next week and into the first days of October. #ILwx #INwx
This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Four Day Outlook. Sub Headline: Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Friday, September 25, 2026 12:59 PM CDT

ALT This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Four Day Outlook. Sub Headline: Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Friday, September 25, 2026 12:59 PM CDT

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While some will see a few sprinkles this morning, mainly dry conditions with seasonable temperatures are forecasted through early next week before chances for a more widespread, wetting rain return midweek next week. #ILwx #INwx
This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Mainly dry with seasonable temperatures through early next week. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Friday, September 25, 2026 3:22 AM CDT

ALT This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Mainly dry with seasonable temperatures through early next week. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Friday, September 25, 2026 3:22 AM CDT
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Relatively pleasant weather will continue through the weekend. Outside a few sprinkles or showers tomorrow morning, dry conditions will prevail. The next opportunity for widespread soaking rain will arrive toward the middle of next week. #ILwx #INwx
This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Mainly dry and seasonably cool conditions continue. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Thursday, September 24, 2026 3:29 PM CDT

ALT This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Mainly dry and seasonably cool conditions continue. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Thursday, September 24, 2026 3:29 PM CDT
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Mainly dry and seasonably cool temperatures are expected through the weekend before some warming begins early next week. #ILWX #INWX
This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Mainly dry and seasonably cool conditions continue. Mainly dry and seasonably cool temperatures are expected through the weekend before some warming begins early next week. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Thursday, September 24, 2026 3:47 AM CDT

ALT This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Mainly dry and seasonably cool conditions continue. Mainly dry and seasonably cool temperatures are expected through the weekend before some warming begins early next week. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Thursday, September 24, 2026 3:47 AM CDT
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Dry and seasonably cool temperatures are expected through the weekend before some warming begins early next week. #ILwx #INwx
This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Dry and seasonably cool conditions continue. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Wednesday, September 23, 2026 1:50 PM CDT

ALT This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Dry and seasonably cool conditions continue. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Wednesday, September 23, 2026 1:50 PM CDT

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Dry and seasonably cool temperatures are expected through this weekend. #ILWX #INWX
This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Dry with seasonably cool temperatures. Dry and seasonably cool temperatures are expected through this weekend. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Wednesday, September 23, 2026 4:17 AM CDT

ALT This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Dry with seasonably cool temperatures. Dry and seasonably cool temperatures are expected through this weekend. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Wednesday, September 23, 2026 4:17 AM CDT

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Widely sct'd showers will probably gradually diminish in coverage thru tonight as upper level low pressure slides southeast. The #fallequinox at 7:05 PM CDT this eve marks the start of astronomical fall, and appropriately cool/comfy temps are in store thru the wknd. #ILwx #INwx
This is a five day forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Fall equinox at 7:05 PM CDT this evening… Appropriately cool/comfortable through the weekend Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Tuesday, September 22, 2026 2:14 PM CDT

ALT This is a five day forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Fall equinox at 7:05 PM CDT this evening… Appropriately cool/comfortable through the weekend Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Tuesday, September 22, 2026 2:14 PM CDT

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A few showers are possible today into tonight, many areas will remain dry. Seasonably cool temperatures are expected through the week. #ILWX #INWX
This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Astronomical fall begins at 7:05 PM CDT Tonight - The weather this week is season appropriate! A few showers are possible today into tonight, many areas will remain dry. Seasonably cool temperatures are expected through the week. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Tuesday, September 22, 2026 4:04 AM CDT

ALT This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Astronomical fall begins at 7:05 PM CDT Tonight - The weather this week is season appropriate! A few showers are possible today into tonight, many areas will remain dry. Seasonably cool temperatures are expected through the week. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Tuesday, September 22, 2026 4:04 AM CDT

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Much quieter weather is in store the rest of the workweek and into the weekend, along with seasonable to slightly below average temperatures. The fall-like temperatures are coinciding with the official start of astronomical fall on Tuesday evening. #ILwx #INwx
This is a five day forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Astronomical fall begins at 7:05 PM CDT on Tuesday - The weather this week is season appropriate! Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Monday, September 21, 2026 2:54 PM CDT

ALT This is a five day forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Astronomical fall begins at 7:05 PM CDT on Tuesday - The weather this week is season appropriate! Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Monday, September 21, 2026 2:54 PM CDT
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A full list of rainfall reports can be found at forecast.weather.gov/product… #ILWx #INWx
NWS Chicago
@NWSChicago
Sep 21
Several rounds of heavy rainfall moved across northern Illinois and northwest Indiana late last week through this past weekend. Some areas received 6 to 7 inches of rain over four days and many experienced impacts from flooding. Thanks to all who submitted a rainfall report!
Headline: Recap of 9/17-9/20 Heavy Rainfall. Sub Headline: Thank you to our volunteer observers for your rainfall reports! Details: Several rounds of heavy rainfall moved across northern Illinois and northwest Indiana late last week through this past weekend. Some areas received 6 to 7 inches of rain over four days and many experienced impacts from flooding. Graphic Created: Monday, September 21, 2026 11:06 AM CDT

ALT Headline: Recap of 9/17-9/20 Heavy Rainfall. Sub Headline: Thank you to our volunteer observers for your rainfall reports! Details: Several rounds of heavy rainfall moved across northern Illinois and northwest Indiana late last week through this past weekend. Some areas received 6 to 7 inches of rain over four days and many experienced impacts from flooding. Graphic Created: Monday, September 21, 2026 11:06 AM CDT
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Several rounds of heavy rainfall moved across northern Illinois and northwest Indiana late last week through this past weekend. Some areas received 6 to 7 inches of rain over four days and many experienced impacts from flooding. Thanks to all who submitted a rainfall report!
Headline: Recap of 9/17-9/20 Heavy Rainfall. Sub Headline: Thank you to our volunteer observers for your rainfall reports! Details: Several rounds of heavy rainfall moved across northern Illinois and northwest Indiana late last week through this past weekend. Some areas received 6 to 7 inches of rain over four days and many experienced impacts from flooding. Graphic Created: Monday, September 21, 2026 11:06 AM CDT

ALT Headline: Recap of 9/17-9/20 Heavy Rainfall. Sub Headline: Thank you to our volunteer observers for your rainfall reports! Details: Several rounds of heavy rainfall moved across northern Illinois and northwest Indiana late last week through this past weekend. Some areas received 6 to 7 inches of rain over four days and many experienced impacts from flooding. Graphic Created: Monday, September 21, 2026 11:06 AM CDT

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A few showers will be possible through Tuesday morning then dry weather is expected for the rest of the week. Expect seasonably cool conditions through the week. #ILWX #INWX
This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Cool and damp to start, then turning drier through the week. A few showers will be possible through Tuesday morning then dry weather is expected for the rest of the week. Expect seasonably cool conditions through the week. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Monday, September 21, 2026 4:03 AM CDT

ALT This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Cool and damp to start, then turning drier through the week. A few showers will be possible through Tuesday morning then dry weather is expected for the rest of the week. Expect seasonably cool conditions through the week. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Monday, September 21, 2026 4:03 AM CDT

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Here is a list of some of the 48-hour rainfall reports we have received ending at 1 PM CDT this afternoon: partnerservices.nws.noaa.gov… #ILwx #INwx
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Light showers or drizzle will continue at times into Tuesday before drier conditions prevail later in the week. Expect seasonably cool conditions through the week.
This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Outlook for the Week. Sub Headline: Cool and damp to start, then turning drier through the week. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Sunday, September 20, 2026 1:00 PM CDT

ALT This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Outlook for the Week. Sub Headline: Cool and damp to start, then turning drier through the week. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Sunday, September 20, 2026 1:00 PM CDT

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A Flood Warning has been issued for portions of the Green River in Lee County until 7:15 PM CDT this evening. Ongoing rainfall and run off from recent rains will allow the river to rise in spots and may result in localized river flooding. Stay alert if in the warned area. #ILwx
Map showing a Flood Warning issued for portions of the Green River in Lee County until 7:15 PM CDT this evening (9/20/2026).

ALT Map showing a Flood Warning issued for portions of the Green River in Lee County until 7:15 PM CDT this evening (9/20/2026).

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Rain chances will persist through Monday, though threat of heavy rainfall should end by early this afternoon. Dry, but cooler than average weather can be expected by mid-week. #ILwx #INwx
This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Turning drier by mid-week. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Sunday, September 20, 2026 2:30 AM CDT

ALT This is a multiday forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Outlook. Sub Headline: Turning drier by mid-week. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Sunday, September 20, 2026 2:30 AM CDT

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Aviso de Inundación Repentina incluye Sandwich IL, Mendota IL, Lake Holiday IL hasta las 8:00 AM CDT
Este gráfico muestra la localización en el mapa de un aviso de inundación repentina. El aviso estará en efecto hasta las 8:00 AM CDT. El aviso incluye a Sandwich IL, Mendota IL, Lake Holiday IL. El aviso incluye el sur del condado de Kalb en el norte centro de Illinois, el norte del condado de La Salle en el norte centro de Illinois y el condado de Lee en el norte centro de Illinois. ¡Evite caminar o manejar su vehículo a través de áreas inundadas! ¡Muévase a un terreno más alto inmediatamente! Hay 43,246 personas bajo este aviso incluyendo 35 escuelas y 2 hospitales.

ALT Este gráfico muestra la localización en el mapa de un aviso de inundación repentina. El aviso estará en efecto hasta las 8:00 AM CDT. El aviso incluye a Sandwich IL, Mendota IL, Lake Holiday IL. El aviso incluye el sur del condado de Kalb en el norte centro de Illinois, el norte del condado de La Salle en el norte centro de Illinois y el condado de Lee en el norte centro de Illinois. ¡Evite caminar o manejar su vehículo a través de áreas inundadas! ¡Muévase a un terreno más alto inmediatamente! Hay 43,246 personas bajo este aviso incluyendo 35 escuelas y 2 hospitales.
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Flash Flood Warning including Sandwich IL, Mendota IL and Lake Holiday IL until 8:00 AM CDT
This graphic displays a flash flood warning plotted on a map. The warning is in effect until 8:00 AM CDT. The warning includes Sandwich IL, Mendota IL and Lake Holiday IL. This warning is for Southern De Kalb County in north central Illinois, Northern La Salle County in north central Illinois and Lee County in north central Illinois. Avoid walking or driving through flood waters! Move immediately to higher ground! There are 43,246 people in the warning along with 35 schools and 2 hospitals.

ALT This graphic displays a flash flood warning plotted on a map. The warning is in effect until 8:00 AM CDT. The warning includes Sandwich IL, Mendota IL and Lake Holiday IL. This warning is for Southern De Kalb County in north central Illinois, Northern La Salle County in north central Illinois and Lee County in north central Illinois. Avoid walking or driving through flood waters! Move immediately to higher ground! There are 43,246 people in the warning along with 35 schools and 2 hospitals.
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A corridor of torrential rainfall and t-storms is expected to set up near and along the I-88 and I-80 corridors overnight. Flash flooding (and potentially significant flash flooding) may occur across these areas before the heaviest rainfall tapers off after daybreak. #ILwx #INwx
Headline: Flash Flooding Threat Overnight. Sub Headline: Greatest likelihood for flooding along/near the I-88 and I-80 corridors. What To Expect: Torrential Rainfall from Showers and Scattered T-storms. Through ~7 AM CDT. Rain and flooding impacts may persist beyond this time. Main Hazard (Primarily in Dark Green Shaded Area in Graphic): Flash Flooding, Potentially Significant. Numerous flooded roads, overflowing creeks/streams, and flooded basements. All thunderstorms will produce: Torrential Rainfall. May cause flooding of roads, low-lying areas, basements, and cause stream/creek rises. Lightning Strikes. What To Do: NEVER drive or walk across flooded roads! Report flooding to us or law enforcement. Graphic Created: Saturday, September 19, 2026 11:30 PM CDT

ALT Headline: Flash Flooding Threat Overnight. Sub Headline: Greatest likelihood for flooding along/near the I-88 and I-80 corridors. What To Expect: Torrential Rainfall from Showers and Scattered T-storms. Through ~7 AM CDT. Rain and flooding impacts may persist beyond this time. Main Hazard (Primarily in Dark Green Shaded Area in Graphic): Flash Flooding, Potentially Significant. Numerous flooded roads, overflowing creeks/streams, and flooded basements. All thunderstorms will produce: Torrential Rainfall. May cause flooding of roads, low-lying areas, basements, and cause stream/creek rises. Lightning Strikes. What To Do: NEVER drive or walk across flooded roads! Report flooding to us or law enforcement. Graphic Created: Saturday, September 19, 2026 11:30 PM CDT

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