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

Rantoul National Aviation Center Airport (KTIP)

Lat: 40.29°NLon: 88.15°WElev: 732ft.

Overcast

22°F

-6°C

Humidity 81%
Wind Speed S 8 mph
Barometer 29.94 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 5 Dec 1:35 pm CST
Extended Forecast for

Bismarck IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 26. South wind around 9 mph, with gusts as high as 17 mph.

    High: 26 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 19. South wind 6 to 8 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.

    Low: 19 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 32. West wind around 6 mph becoming calm in the afternoon.

    High: 32 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 40 percent chance of snow after midnight. Cloudy, with a low around 24. Light southeast wind.

    Low: 24 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow likely, mixing with rain after 9am, then gradually ending. Mostly cloudy, with a high near 32. Southeast wind 5 to 9 mph becoming north in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Rain/Snow
    Likely then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 9. North wind 3 to 8 mph.

    Low: 9 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 22. Light and variable wind.

    High: 22 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 26. South wind around 9 mph, with gusts as high as 17 mph.
Tonight
Mostly cloudy, with a low around 19. South wind 6 to 8 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.
Saturday
Mostly cloudy, with a high near 32. West wind around 6 mph becoming calm in the afternoon.
Saturday Night
A 40 percent chance of snow after midnight. Cloudy, with a low around 24. Light southeast wind.
Sunday
Snow likely, mixing with rain after 9am, then gradually ending. Mostly cloudy, with a high near 32. Southeast wind 5 to 9 mph becoming north in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly cloudy, with a low around 9. North wind 3 to 8 mph.
Monday
Mostly sunny, with a high near 22. Light and variable wind.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Partly sunny, with a high near 35.
Tuesday Night
A 30 percent chance of rain after midnight. Cloudy, with a low around 29.
Wednesday
A chance of rain. Mostly cloudy, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
Mostly cloudy, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bismarck IL
 40.25°N 87.62°W (Elev. 656 ft)
Last Update:
1:42 pm CST Dec 5, 2025
Forecast Valid:
1pm CST Dec 5, 2025-6pm CST Dec 11, 2025
 
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