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

Pontiac Municipal Airport (KPNT)

Lat: 40.92°NLon: 88.62°WElev: 650ft.

Fair

37°F

3°C

Humidity 68%
Wind Speed NA
Barometer 30.00 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 22 Mar 8:35 pm CDT
Extended Forecast for

Cornell IL

  • Tonight

    Tonight: A 20 percent chance of showers before 10pm. Mostly cloudy during the early evening, then becoming mostly clear, with a low around 29. Blustery, with a north wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 29 °F

    Slight Chance
    Showers and
    Blustery then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 47. North wind around 10 mph, with gusts as high as 20 mph.

    High: 47 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. East northeast wind 5 to 10 mph becoming south southeast after midnight.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 58. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 58 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39. South wind around 5 mph, with gusts as high as 15 mph.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers after 1pm. Partly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 1am. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 20 percent chance of showers before 10pm. Mostly cloudy during the early evening, then becoming mostly clear, with a low around 29. Blustery, with a north wind 10 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 47. North wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 30. East northeast wind 5 to 10 mph becoming south southeast after midnight.
Tuesday
Partly sunny, with a high near 58. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 39. South wind around 5 mph, with gusts as high as 15 mph.
Wednesday
Mostly cloudy, with a high near 67.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 50.
Thursday
A chance of showers after 1pm. Partly sunny, with a high near 79.
Thursday Night
A chance of showers before 1am. Mostly cloudy, with a low around 33.
Friday
Partly sunny, with a high near 46.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cornell IL
 41°N 88.73°W
Last Update:
8:26 pm CDT Mar 22, 2026
Forecast Valid:
8pm CDT Mar 22, 2026-6pm CDT Mar 29, 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