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.

Fair

80°F

27°C

Humidity 79%
Wind Speed Calm
Barometer 29.91 in (1012.0 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 4 Sep 2:51 am CDT
Extended Forecast for

Berkeley IL

Heat Advisory September 4, 03:50am until September 4, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 4, 03:50am until September 4, 10:00pm

    NOW until 10:00pm Fri

    Heat Advisory

  • Overnight

    Low: 77 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms between 10am and noon. Mostly sunny, with a high near 94. Heat index values as high as 103. North northwest wind 5 to 10 mph becoming south southeast in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 94 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly between midnight and 4am. Partly cloudy, with a low around 74. West wind around 5 mph.

    Low: 74 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 86. Northwest wind 5 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 15 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Overnight
A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 77. Southwest wind around 5 mph.
Friday
A slight chance of showers and thunderstorms between 10am and noon. Mostly sunny, with a high near 94. Heat index values as high as 103. North northwest wind 5 to 10 mph becoming south southeast in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly between midnight and 4am. Partly cloudy, with a low around 74. West wind around 5 mph.
Saturday
Mostly sunny, with a high near 86. Northwest wind 5 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 68. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 66.
Labor Day
Mostly sunny, with a high near 82.
Monday Night
Mostly cloudy, with a low around 67.
Tuesday
Partly sunny, with a high near 85.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 72.
Wednesday
Partly sunny, with a high near 88.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 71.
Thursday
Partly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Berkeley IL
 41.89°N 87.91°W
Last Update:
2:56 am CDT Sep 4, 2026
Forecast Valid:
3am CDT Sep 4, 2026-6pm CDT Sep 10, 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