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

46°F

8°C

Humidity 46%
Wind Speed S 15 G 24 mph
Barometer 30.35 in (1028.6 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 28 Mar 8:53 pm CDT
Extended Forecast for

Summit Argo IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. South southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 62. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Partly Sunny

  • Sunday Night

    Sunday 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

  • Monday

    Monday: Mostly sunny, with a high near 76. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 63 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 76. Chance of precipitation is 80%.

    High: 76 °F

    Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.

    Low: 38 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 44.

    High: 44 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain and snow showers after 1am. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 40. South southwest wind around 10 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 62. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 51. South southwest wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 76. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 76. Chance of precipitation is 80%.
Tuesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Wednesday
Mostly cloudy, with a high near 44.
Wednesday Night
A chance of rain and snow showers after 1am. Mostly cloudy, with a low around 33.
Thursday
A chance of rain and snow showers before 1pm, then a chance of rain showers. Mostly cloudy, with a high near 44.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 38.
Friday
A chance of showers. Mostly cloudy, with a high near 58.
Friday Night
A chance of showers. Mostly cloudy, with a low around 46.
Saturday
A chance of showers. Mostly cloudy, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summit Argo IL
 41.78°N 87.83°W
Last Update:
8:06 pm CDT Mar 28, 2026
Forecast Valid:
9pm CDT Mar 28, 2026-6pm CDT Apr 4, 2026
 
Forecast Discussion
 
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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