Storm Systems Continue to Impact the Pacific Northwest; Lake Effect Snow Continues

A second Pacific cold front will cross the Pacific Northwest Wednesday followed by another atmospheric river. Each of these features will bring additional periods of gusty winds, mountain snow, and heavy to excessive rainfall with renewed flooding. Heavy lake effect snow continues into Tuesday east of Lakes Erie and Ontario. Read More >

Hazardous Weather Conditions

Current conditions at

Pontiac Municipal Airport (KPNT)

Lat: 40.92°NLon: 88.62°WElev: 650ft.

Fair

17°F

-8°C

Humidity 82%
Wind Speed S 3 mph
Barometer 30.10 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Last update 15 Dec 7:55 pm CST
Extended Forecast for

4 Miles SSW Cullom IL

  • Tonight

    Tonight: Mostly clear, with a low around 13. South southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 36. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 36 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38. West wind 5 to 10 mph becoming south southeast in the afternoon.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain after midnight.  Mostly cloudy, with a low around 28. Breezy, with a south southeast wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Rain and
    Breezy

  • Thursday

    Thursday: Rain before noon, then a chance of rain and snow.  High near 48. Breezy.  Chance of precipitation is 90%.

    High: 48 °F

    Breezy. Rain
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 12. Breezy.

    Low: 12 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 13. South southwest wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Sunny, with a high near 36. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 27. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 38. West wind 5 to 10 mph becoming south southeast in the afternoon.
Wednesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 28. Breezy, with a south southeast wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph.
Thursday
Rain before noon, then a chance of rain and snow. High near 48. Breezy. Chance of precipitation is 90%.
Thursday Night
Mostly cloudy, with a low around 12. Breezy.
Friday
Mostly sunny, with a high near 28.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
Partly sunny, with a high near 44.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 37.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Mostly cloudy, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Cullom IL
 40.83°N 88.3°W
3:50 pm CST Dec 15, 2025
8pm CST Dec 15, 2025-6pm CST Dec 22, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database