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.

Mostly Cloudy

40°F

4°C

Humidity 70%
Wind Speed NA
Barometer 30.44 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 27 Mar 12:15 pm CDT
Extended Forecast for

Cornell IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 47. North northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 47 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 26. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 26 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 51. Light and variable wind becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39. South wind 10 to 15 mph.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 63. South southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 63 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 82. Breezy.

    High: 82 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 47. North northwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
Clear, with a low around 26. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
Sunny, with a high near 51. Light and variable wind becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 39. South wind 10 to 15 mph.
Sunday
Partly sunny, with a high near 63. South southwest wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 78.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Breezy.
Tuesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 55. Breezy.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 67. Breezy.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 43.
Thursday
Showers likely. Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cornell IL
 40.98°N 88.73°W
Last Update:
10:11 am CDT Mar 27, 2026
Forecast Valid:
12pm CDT Mar 27, 2026-6pm CDT Apr 2, 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