National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms Tonight in the Mid-Atlantic; Tropical Storm Bertha in the Gulf

Scattered thunderstorms with severe gusts, hail and a tornado risk are possible near a cold front from the Ohio Valley to the Mid-Atlantic tonight. Tropical Storm Bertha is expected to bring tropical storm conditions to portions of the Gulf Coast from the panhandle of Florida into Louisiana through Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Mostly Cloudy

71°F

22°C

Humidity 71%
Wind Speed NE 18 mph
Barometer 29.91 in (1011.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 21 Jul 9:53 pm CDT
Extended Forecast for

Chicago IL

  • Tonight

    Tonight: A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 61. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 61 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. North northeast wind around 10 mph, with gusts as high as 15 mph.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. North northeast wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming east around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64. Southeast wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 61. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 74. North northeast wind around 10 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 62. North northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 80. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 64. Southeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 83.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
A chance of showers. Partly cloudy, with a low around 74.
Monday
Mostly sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chicago IL
 41.84°N 87.68°W
Last Update:
9:36 pm CDT Jul 21, 2026
Forecast Valid:
10pm CDT Jul 21, 2026-6pm CDT Jul 28, 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