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

10°F

-12°C

Humidity 55%
Wind Speed N 8 mph
Barometer 30.35 in (1030.0 mb)
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Wind Chill-2°F (-19°C)
Last update 29 Jan 10:53 pm CST
Extended Forecast for

Summit IL

Winter Storm Watch January 30, 03:00pm until January 31, 12:00am
Winter Weather Advisory January 30, 09:00am until January 30, 03:00pm
Click here for hazard details and duration
Winter Storm Watch
Winter Weather Advisory

  • Tonight

    Tonight: Cloudy, with a low around 4. Wind chill values as low as -6. Northwest wind around 5 mph.

    Low: 4 °F

    Cloudy

  • Friday

    Friday: Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 19. Wind chill values as low as -7. Northwest wind 5 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 19 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 9. Wind chill values as low as -5. North northwest wind 10 to 15 mph.

    Low: 9 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Isolated snow showers after noon. Partly sunny, with a high near 25. Wind chill values as low as -4. North northwest wind 10 to 15 mph. Chance of precipitation is 20%.

    High: 25 °F

    Mostly Cloudy
    then Isolated
    Snow Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 9. Northwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 9 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 27.

    High: 27 °F

    Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow

  • Monday

    Monday: Mostly cloudy, with a high near 29.

    High: 29 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 4. Wind chill values as low as -6. Northwest wind around 5 mph.
Friday
Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 19. Wind chill values as low as -7. Northwest wind 5 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Friday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 9. Wind chill values as low as -5. North northwest wind 10 to 15 mph.
Saturday
Isolated snow showers after noon. Partly sunny, with a high near 25. Wind chill values as low as -4. North northwest wind 10 to 15 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 9. Northwest wind around 5 mph, with gusts as high as 10 mph.
Sunday
Sunny, with a high near 27.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 17.
Monday
Mostly cloudy, with a high near 29.
Monday Night
Mostly cloudy, with a low around 16.
Tuesday
Mostly cloudy, with a high near 28.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 19.
Wednesday
A chance of snow. Mostly cloudy, with a high near 28.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
Partly sunny, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summit IL
 41.8°N 87.83°W
Last Update:
11:32 pm CST Jan 29, 2026
Forecast Valid:
11pm CST Jan 29, 2026-6pm CST Feb 5, 2026
 
Forecast Discussion
 
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Additional Resources

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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