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

56°F

13°C

Humidity 57%
Wind Speed W 17 G 30 mph
Barometer 29.59 in (1001.4 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 17 May 7:53 am CDT
Extended Forecast for

Summit IL

  • Today

    Today: Mostly cloudy, with a high near 67. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph.

    High: 67 °F

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 50. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 65. Northwest wind around 10 mph becoming east northeast in the afternoon. Winds could gust as high as 15 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46. Northeast wind 10 to 15 mph.

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers. Mostly cloudy, with a high near 60. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 60 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 55. Chance of precipitation is 80%.

    High: 55 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 1pm. Partly sunny, with a high near 58.

    High: 58 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly cloudy, with a high near 67. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 50. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 65. Northwest wind around 10 mph becoming east northeast in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 46. Northeast wind 10 to 15 mph.
Monday
A 20 percent chance of showers. Mostly cloudy, with a high near 60. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 47.
Tuesday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 55. Chance of precipitation is 80%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 47.
Wednesday
Showers likely, mainly before 1pm. Partly sunny, with a high near 58.
Wednesday Night
A chance of showers before 1am. Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summit IL
 41.78°N 87.83°W
Last Update:
3:27 am CDT May 17, 2025
Forecast Valid:
8am CDT May 17, 2025-6pm CDT May 23, 2025
 
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