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.

Overcast

36°F

2°C

Humidity 76%
Wind Speed NE 15 mph
Barometer 30.34 in (1028.0 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 6 Apr 9:53 pm CDT
Extended Forecast for

Summit IL

  • Tonight

    Tonight: A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 29. North northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39. North northeast wind around 10 mph.

    High: 39 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 4am. Increasing clouds, with a low around 33. East wind around 10 mph becoming south southeast after midnight. Winds could gust as high as 15 mph.

    Low: 33 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 65. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 65 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 53. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 53 °F

    Chance
    Showers and
    Breezy

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 69. Chance of precipitation is 30%.

    High: 69 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.

    Low: 48 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 57.

    High: 57 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 29. North northeast wind around 10 mph, with gusts as high as 15 mph.
Tuesday
Mostly sunny, with a high near 39. North northeast wind around 10 mph.
Tuesday Night
A 20 percent chance of showers after 4am. Increasing clouds, with a low around 33. East wind around 10 mph becoming south southeast after midnight. Winds could gust as high as 15 mph.
Wednesday
Partly sunny, with a high near 65. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 53. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 69. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Friday
A chance of showers. Mostly cloudy, with a high near 57.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 60.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 50.
Sunday
A chance of showers. Mostly cloudy, with a high near 77.
Sunday Night
Showers likely. Mostly cloudy, with a low around 62.
Monday
Showers likely. Mostly cloudy, with a high near 77. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summit IL
 41.8°N 87.83°W
Last Update:
9:56 pm CDT Apr 6, 2026
Forecast Valid:
10pm CDT Apr 6, 2026-6pm CDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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