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 and Breezy

80°F

27°C

Humidity 42%
Wind Speed SW 22 G 41 mph
Barometer 29.86 in (1010.6 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 12 Apr 2:53 pm CDT
Extended Forecast for

Summit Argo IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 80. Breezy, with a southwest wind around 25 mph, with gusts as high as 45 mph.

    High: 80 °F

    Slight Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 1am. Low around 62. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers and
    Breezy then
    Showers
    Likely

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 78. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 78 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 80. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 80 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms. Low around 60. Chance of precipitation is 80%.

    Low: 60 °F

    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms. High near 71. Chance of precipitation is 90%.

    High: 71 °F

    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 75.

    High: 75 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 80. Breezy, with a southwest wind around 25 mph, with gusts as high as 45 mph.
Tonight
Showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 1am. Low around 62. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 20 percent chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 78. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 80. Southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
Showers and thunderstorms. Low around 60. Chance of precipitation is 80%.
Wednesday
Showers and thunderstorms. High near 71. Chance of precipitation is 90%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58.
Thursday
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 56.
Friday
Partly sunny, with a high near 83.
Friday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 58.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69.
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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:
3:36 pm CDT Apr 12, 2026
Forecast Valid:
3pm CDT Apr 12, 2026-6pm CDT Apr 18, 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