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.

Partly Cloudy

51°F

11°C

Humidity 50%
Wind Speed Calm
Barometer 30.03 in (1017.3 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 30 Apr 9:53 am CDT
Extended Forecast for

Summit Argo IL

  • Today

    Today: A 40 percent chance of showers, mainly after 4pm. Mostly cloudy, with a temperature rising to near 55 by noon, then falling to around 48 during the remainder of the day. West northwest wind 5 to 10 mph becoming east northeast in the afternoon.

    High: 55 °F⇓

    Partly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A 50 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 40. East northeast wind 5 to 10 mph becoming north northwest after midnight.

    Low: 40 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 50. North northwest wind around 10 mph, with gusts as high as 15 mph.

    High: 50 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy frost after 3am. Otherwise, partly cloudy, with a low around 37. Northeast wind 5 to 10 mph becoming light after midnight.

    Low: 37 °F

    Partly Cloudy
    then Patchy
    Frost

  • Saturday

    Saturday: Mostly sunny, with a high near 53. North northeast wind 5 to 10 mph.

    High: 53 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 1am. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 70. Breezy.

    High: 70 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

Detailed Forecast

Today
A 40 percent chance of showers, mainly after 4pm. Mostly cloudy, with a temperature rising to near 55 by noon, then falling to around 48 during the remainder of the day. West northwest wind 5 to 10 mph becoming east northeast in the afternoon.
Tonight
A 50 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 40. East northeast wind 5 to 10 mph becoming north northwest after midnight.
Friday
Mostly sunny, with a high near 50. North northwest wind around 10 mph, with gusts as high as 15 mph.
Friday Night
Patchy frost after 3am. Otherwise, partly cloudy, with a low around 37. Northeast wind 5 to 10 mph becoming light after midnight.
Saturday
Mostly sunny, with a high near 53. North northeast wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 64.
Sunday Night
A chance of showers before 1am. Mostly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 70. Breezy.
Monday Night
A chance of showers. Partly cloudy, with a low around 48.
Tuesday
A chance of showers. Partly sunny, with a high near 64.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 49.
Wednesday
A chance of showers. Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summit Argo IL
 41.78°N 87.83°W
Last Update:
10:30 am CDT Apr 30, 2026
Forecast Valid:
10am CDT Apr 30, 2026-6pm CDT May 6, 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