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.

Overcast

39°F

4°C

Humidity 73%
Wind Speed NE 18 G 28 mph
Barometer 30.11 in (1019.7 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 1 Apr 2:53 am CDT
Extended Forecast for

Summit Argo IL

  • Overnight

    Overnight: Cloudy, with a low around 38. North northeast wind around 15 mph, with gusts as high as 30 mph.

    Low: 38 °F

    Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly between 9am and 11am. Cloudy, with a high near 44. Northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 44 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, then showers and possibly a thunderstorm after 1am. Temperature rising to around 45 by 5am. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 42 °F⇑

    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 72. Breezy, with a south wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 100%.

    High: 72 °F

    Breezy.
    Showers
    Likely then
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 51. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.

    Low: 51 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 68. Chance of precipitation is 40%.

    High: 68 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 52. Chance of precipitation is 90%.

    Low: 52 °F

    Showers

  • Saturday

    Saturday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 64.

    High: 64 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 38. North northeast wind around 15 mph, with gusts as high as 30 mph.
Wednesday
A 30 percent chance of showers, mainly between 9am and 11am. Cloudy, with a high near 44. Northeast wind around 15 mph, with gusts as high as 25 mph.
Wednesday Night
Showers likely, then showers and possibly a thunderstorm after 1am. Temperature rising to around 45 by 5am. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers and possibly a thunderstorm. High near 72. Breezy, with a south wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 100%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 51. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.
Friday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 68. Chance of precipitation is 40%.
Friday Night
Showers and possibly a thunderstorm. Low around 52. Chance of precipitation is 90%.
Saturday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Partly sunny, with a high near 49. Breezy.
Sunday Night
Mostly clear, with a low around 35.
Monday
A chance of showers. Partly sunny, with a high near 56.
Monday Night
A chance of showers. Mostly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 47.
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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:
3:16 am CDT Apr 1, 2026
Forecast Valid:
3am CDT Apr 1, 2026-6pm CDT Apr 7, 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