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

Hazardous Weather Conditions

Current conditions at

Lansing Municipal Airport (KIGQ)

Lat: 41.54°NLon: 87.53°WElev: 607ft.

Fair

86°F

30°C

Humidity 62%
Wind Speed NE 12 mph
Barometer 29.99 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 4 Sep 10:55 am CDT
Extended Forecast for

Oak Forest IL

Heat Advisory September 4, 11:05am until September 4, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 4, 11:05am until September 4, 10:00pm

    NOW until 10:00pm Fri

    Heat Advisory

  • Today

    High: 93 °F

    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly between 1am and 4am. Partly cloudy, with a low around 73. West southwest wind around 5 mph.

    Low: 73 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 88. Heat index values as high as 95. Northwest wind 5 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 15 mph.

    High: 88 °F

    Slight Chance
    T-storms then
    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 82. East northeast wind 5 to 10 mph.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 93. Heat index values as high as 104. East southeast wind around 10 mph becoming west in the afternoon. Winds could gust as high as 15 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly between 1am and 4am. Partly cloudy, with a low around 73. West southwest wind around 5 mph.
Saturday
A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 88. Heat index values as high as 95. 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 82. East northeast wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 64.
Labor Day
Mostly sunny, with a high near 83.
Monday Night
Mostly cloudy, with a low around 66.
Tuesday
Partly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 71.
Thursday
Partly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Oak Forest IL
 41.6°N 87.75°W
Last Update:
10:21 am CDT Sep 4, 2026
Forecast Valid:
11am 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