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

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago-O'Hare International Airport (KORD)

Lat: 41.98°NLon: 87.9°WElev: 666ft.

Mostly Cloudy

86°F

30°C

Humidity 75%
Wind Speed N 7 mph
Barometer 30.05 in (1016.8 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 28 Jul 10:51 am CDT
Extended Forecast for

Downers Grove IL

Heat Advisory July 28, 12:00pm until July 28, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 105. Northwest wind around 5 mph.

    High: 94 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. North northwest wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Heat index values as high as 106. East northeast wind 5 to 10 mph becoming west southwest in the afternoon.

    High: 93 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. North northeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 105. Northwest wind around 5 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. North northwest wind around 5 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Heat index values as high as 106. East northeast wind 5 to 10 mph becoming west southwest in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. North northeast wind around 5 mph, with gusts as high as 10 mph.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Northeast wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Downers Grove IL
 41.8°N 88°W
Last Update:
10:41 am CDT Jul 28, 2025
Forecast Valid:
11am CDT Jul 28, 2025-6pm CDT Aug 3, 2025
 
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