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

Extreme Heat and Excessive Rainfall This Week

A significant heat wave continues for the Rockies, Northern Plains, and Great Lakes into the Mid-Atlantic, peaking in intensity through midweek and lingering across parts of the Northern Plains and Midwest until this weekend. Excessive rainfall my bring life-threatening and locally catastrophic flash and urban flooding across portions of southwestern Texas through early Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

A Few Clouds

87°F

31°C

Humidity 61%
Wind Speed W 6 mph
Barometer 30.09 in (1017.5 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 15 Jul 9:53 am CDT
Extended Forecast for

Chicago IL

  • Today

    Today: Sunny, with a high near 93. Heat index values as high as 99. West wind around 5 mph becoming east in the afternoon. Winds could gust as high as 10 mph.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Patchy smoke after 5am. Partly cloudy, with a low around 76. East wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Partly Cloudy
    then Patchy
    Smoke

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Widespread smoke, mainly between 8am and 11am. Partly sunny, with a high near 90. Calm wind becoming east northeast around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 90 °F

    Smoke then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Areas of smoke before 8pm. Partly cloudy, with a low around 75. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 75 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 91. Calm wind becoming southeast around 5 mph in the morning. Winds could gust as high as 10 mph. Chance of precipitation is 70%.

    High: 91 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74.

    Low: 74 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

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

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 93. Heat index values as high as 99. West wind around 5 mph becoming east in the afternoon. Winds could gust as high as 10 mph.
Tonight
Patchy smoke after 5am. Partly cloudy, with a low around 76. East wind around 5 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Widespread smoke, mainly between 8am and 11am. Partly sunny, with a high near 90. Calm wind becoming east northeast around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Thursday Night
A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Areas of smoke before 8pm. Partly cloudy, with a low around 75. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 91. Calm wind becoming southeast around 5 mph in the morning. Winds could gust as high as 10 mph. Chance of precipitation is 70%.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 72.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chicago IL
 41.84°N 87.68°W
Last Update:
10:01 am CDT Jul 15, 2026
Forecast Valid:
10am CDT Jul 15, 2026-6pm CDT Jul 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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