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

61°F

16°C

Humidity 54%
Wind Speed W 15 G 23 mph
Barometer 29.78 in (1008.5 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 20 Mar 9:53 am CDT
Extended Forecast for

Summit Argo IL

  • Today

    Today: Partly sunny, with a high near 70. West southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 70 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69. East wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51. South southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers. Mostly cloudy, with a high near 56. Breezy, with a west southwest wind 10 to 20 mph becoming north in the afternoon. Winds could gust as high as 25 mph.

    High: 56 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 70. West southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly cloudy, with a low around 38. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
Mostly sunny, with a high near 69. East wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 51. South southwest wind around 10 mph, with gusts as high as 20 mph.
Sunday
A 30 percent chance of showers. Mostly cloudy, with a high near 56. Breezy, with a west southwest wind 10 to 20 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 45.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Mostly cloudy, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
A chance of showers. Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summit Argo IL
 41.78°N 87.83°W
Last Update:
9:51 am CDT Mar 20, 2026
Forecast Valid:
10am CDT Mar 20, 2026-6pm CDT Mar 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation