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.

Fair

39°F

4°C

Humidity 65%
Wind Speed Calm
Barometer 30.28 in (1025.9 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 20 Apr 1:53 am CDT
Extended Forecast for

Chicago IL

Frost Advisory until April 20, 09:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory until April 20, 09:00am

    NOW until 9:00am Mon

    Frost Advisory

  • Overnight

    Low: 36 °F

    Patchy Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 52. Light east wind becoming east southeast 5 to 10 mph in the morning.

    High: 52 °F

    Areas Frost
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45. Southeast wind 5 to 10 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. Southwest wind around 15 mph, with gusts as high as 30 mph.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 50. West southwest wind 5 to 10 mph becoming north northwest after midnight.

    Low: 50 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Overnight
Patchy frost. Otherwise, mostly clear, with a low around 36. Calm wind.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 52. Light east wind becoming east southeast 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 45. Southeast wind 5 to 10 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 74. Southwest wind around 15 mph, with gusts as high as 30 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 50. West southwest wind 5 to 10 mph becoming north northwest after midnight.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Showers likely after 1am. Mostly cloudy, with a low around 60.
Friday
Showers likely. Mostly cloudy, with a high near 72.
Friday Night
A chance of showers. Mostly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chicago IL
 41.84°N 87.68°W
Last Update:
1:41 am CDT Apr 20, 2026
Forecast Valid:
2am CDT Apr 20, 2026-6pm CDT Apr 26, 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