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

65°F

18°C

Humidity 98%
Wind Speed Calm
Barometer 29.91 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 14 Oct 4:55 am CDT
Extended Forecast for

Cullom IL

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 66. North northwest wind around 5 mph.

    Low: 66 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm. Mostly cloudy, with a high near 69. Northeast wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain after 4am. Mostly cloudy, with a low around 59. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain, with thunderstorms also possible after 1pm. High near 66. East wind 5 to 10 mph becoming south southeast in the afternoon. Chance of precipitation is 90%.

    High: 66 °F

    Rain

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm before 1am, then a chance of rain. Low around 50. South southwest wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    Low: 50 °F

    Rain

  • Friday

    Friday: A 20 percent chance of rain. Partly sunny, with a high near 56. Breezy.

    High: 56 °F

    Slight Chance
    Rain and
    Breezy

  • Friday Night

    Friday Night: Patchy frost after 5am. Otherwise, mostly clear, with a low around 37.

    Low: 37 °F

    Partly Cloudy
    then Patchy
    Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, sunny, with a high near 57.

    High: 57 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 66. North northwest wind around 5 mph.
Wednesday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm. Mostly cloudy, with a high near 69. Northeast wind 5 to 10 mph. Chance of precipitation is 40%.
Wednesday Night
A 50 percent chance of rain after 4am. Mostly cloudy, with a low around 59. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
Rain, with thunderstorms also possible after 1pm. High near 66. East wind 5 to 10 mph becoming south southeast in the afternoon. Chance of precipitation is 90%.
Thursday Night
Rain and possibly a thunderstorm before 1am, then a chance of rain. Low around 50. South southwest wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 56. Breezy.
Friday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 37.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 57.
Saturday Night
Clear, with a low around 38.
Sunday
Sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Partly sunny, with a high near 71.
Monday Night
Mostly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cullom IL
 40.87°N 88.27°W
Last Update:
2:41 am CDT Oct 14, 2026
Forecast Valid:
5am CDT Oct 14, 2026-6pm CDT Oct 20, 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