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

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Mostly Cloudy

45°F

7°C

Humidity 71%
Wind Speed W 6 mph
Barometer 30.09 in (1019.0 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 9 Jan 2:53 pm CST
Extended Forecast for

Summit IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 48. North northeast wind 5 to 10 mph.

    High: 48 °F

    Partly Sunny

  • Tonight

    Tonight: A 40 percent chance of rain after 2am. Increasing clouds, with a low around 34. Northeast wind around 5 mph becoming south southeast after midnight.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: Rain and snow before noon, then a chance of snow showers. High near 36. South wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Rain/Snow
    then Chance
    Snow Showers

  • Saturday Night

    Saturday Night: Scattered snow showers. Mostly cloudy, with a low around 22. West northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    Low: 22 °F

    Scattered
    Snow Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 32. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 32 °F

    Partly Sunny
    and Breezy
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain after noon. Mostly cloudy, with a high near 46.

    High: 46 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 48. North northeast wind 5 to 10 mph.
Tonight
A 40 percent chance of rain after 2am. Increasing clouds, with a low around 34. Northeast wind around 5 mph becoming south southeast after midnight.
Saturday
Rain and snow before noon, then a chance of snow showers. High near 36. South wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Saturday Night
Scattered snow showers. Mostly cloudy, with a low around 22. West northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 32. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
A chance of rain after noon. Mostly cloudy, with a high near 46.
Tuesday Night
A chance of rain before midnight, then a chance of rain and snow. Cloudy, with a low around 30.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 34.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 19.
Thursday
Partly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summit IL
 41.8°N 87.83°W
Last Update:
3:11 pm CST Jan 9, 2026
Forecast Valid:
3pm CST Jan 9, 2026-6pm CST Jan 15, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation