National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

A Few Clouds

-7°F

-22°C

Humidity 45%
Wind Speed N 10 mph
Barometer 30.76 in (1044.9 mb)
Dewpoint -23°F (-31°C)
Visibility 10.00 mi
Wind Chill-25°F (-32°C)
Last update 23 Jan 9:53 pm CST
Extended Forecast for

Summit IL

Cold Weather Advisory January 23, 10:10pm until January 24, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 23, 10:10pm until January 24, 09:00am

    NOW until 9:00am Sat

    Cold Weather Advisory

  • Tonight

    Low: -6 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after 5pm. Cloudy and cold, with a high near 10. Wind chill values as low as -19. North northwest wind around 5 mph becoming east northeast in the afternoon.

    High: 10 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Snow, mainly after 8pm. Low around 7. Wind chill values as low as -2. Northeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 7 °F

    Snow

  • Sunday

    Sunday: Snow. High near 18. Wind chill values as low as -1. North wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 18 °F

    Snow

  • Sunday Night

    Sunday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 3. Northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 3 °F

    Chance Snow

  • Monday

    Monday: Mostly sunny and cold, with a high near 10.

    High: 10 °F

    Cold

  • Monday Night

    Monday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 19.

    High: 19 °F

    Partly Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around -6. Wind chill values as low as -21. North northwest wind 5 to 10 mph.
Saturday
A 30 percent chance of snow, mainly after 5pm. Cloudy and cold, with a high near 10. Wind chill values as low as -19. North northwest wind around 5 mph becoming east northeast in the afternoon.
Saturday Night
Snow, mainly after 8pm. Low around 7. Wind chill values as low as -2. Northeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Sunday
Snow. High near 18. Wind chill values as low as -1. North wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 3. Northwest wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny and cold, with a high near 10.
Monday Night
Partly cloudy, with a low around 5.
Tuesday
Partly sunny, with a high near 19.
Tuesday Night
Partly cloudy, with a low around 4.
Wednesday
Partly sunny, with a high near 14.
Wednesday Night
Mostly cloudy, with a low around 3.
Thursday
Mostly sunny, with a high near 15.
Thursday Night
Partly cloudy, with a low around 4.
Friday
Mostly sunny, with a high near 20.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summit IL
 41.8°N 87.83°W
Last Update:
9:36 pm CST Jan 23, 2026
Forecast Valid:
10pm CST Jan 23, 2026-6pm CST Jan 30, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation