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

Hazardous Weather Conditions

Current conditions at

Pontiac Municipal Airport (KPNT)

Lat: 40.92°NLon: 88.62°WElev: 650ft.

Fair

73°F

23°C

Humidity 99%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 4 Sep 1:35 am CDT
Extended Forecast for

Forrest IL

Heat Advisory until September 4, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until September 4, 07:00pm

    NOW until 7:00pm Fri

    Heat Advisory

  • Overnight

    Low: 74 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 94. Heat index values as high as 107. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 94 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 73. West southwest wind around 5 mph becoming calm.

    Low: 73 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms before 7am. Sunny, with a high near 91. Heat index values as high as 105. Calm wind becoming north around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 91 °F

    Slight Chance
    T-storms then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66. Northeast wind around 5 mph, with gusts as high as 15 mph.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 74. South southwest wind around 5 mph, with gusts as high as 10 mph.
Friday
Sunny, with a high near 94. Heat index values as high as 107. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 73. West southwest wind around 5 mph becoming calm.
Saturday
A 10 percent chance of showers and thunderstorms before 7am. Sunny, with a high near 91. Heat index values as high as 105. Calm wind becoming north around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Saturday Night
Partly cloudy, with a low around 66. Northeast wind around 5 mph, with gusts as high as 15 mph.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 61.
Labor Day
Sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 89.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
Mostly sunny, with a high near 93.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 71.
Thursday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Forrest IL
 40.75°N 88.42°W
Last Update:
1:21 am CDT Sep 4, 2026
Forecast Valid:
1am CDT Sep 4, 2026-6pm CDT Sep 10, 2026
 
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Additional Resources

Radar & Satellite Image

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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