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.

Mostly Cloudy

44°F

7°C

Humidity 49%
Wind Speed W 8 mph
Barometer 30.11 in (1020.0 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 19 Apr 8:53 am CDT
Extended Forecast for

Summit IL

  • Today

    Today: A 40 percent chance of showers after noon. Partly sunny, with a high near 50. Breezy, with a west southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 50 °F

    Partly Sunny
    then Chance
    Showers and
    Breezy

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm. Areas of frost after 3am. Otherwise, partly cloudy, with a low around 33. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Slight Chance
    Showers then
    Areas Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 52. Calm wind becoming south around 5 mph in the morning. Winds could gust as high as 10 mph.

    High: 52 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Today
A 40 percent chance of showers after noon. Partly sunny, with a high near 50. Breezy, with a west southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tonight
A 20 percent chance of showers before 8pm. Areas of frost after 3am. Otherwise, partly cloudy, with a low around 33. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 52. Calm wind becoming south around 5 mph in the morning. Winds could gust as high as 10 mph.
Monday Night
Partly cloudy, with a low around 45. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 73. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Sunny, with a high near 73.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 62.
Friday
Showers likely. Mostly cloudy, with a high near 73.
Friday Night
A chance of showers. Mostly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summit IL
 41.8°N 87.83°W
Last Update:
8:46 am CDT Apr 19, 2026
Forecast Valid:
9am CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation