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.

Fair

13°F

-11°C

Humidity 90%
Wind Speed S 5 mph
Barometer 30.19 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 8 Dec 9:15 pm CST
Extended Forecast for

Potomac IL

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 24 by 5am. Wind chill values between 5 and 10. South wind 5 to 14 mph, with gusts as high as 23 mph.

    Low: 13 °F⇑

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 38. Southwest wind 11 to 16 mph, with gusts as high as 26 mph.

    High: 38 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Rain likely, mainly between midnight and 3am. Cloudy, with a low around 33. Breezy, with a south southwest wind 11 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Rain Likely
    and Breezy

  • Wednesday

    Wednesday: Scattered rain showers, mixing with snow after 9am, then gradually ending. Mostly cloudy, with a temperature rising to near 37 by 9am, then falling to around 30 during the remainder of the day. Breezy, with a northwest wind 15 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 50%.

    High: 37 °F⇓

    Breezy.
    Scattered
    Rain/Snow
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 20. West northwest wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 20 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 28. West wind 5 to 7 mph.

    High: 28 °F

    Mostly Cloudy
    then Chance
    Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 17. North northwest wind 5 to 7 mph.

    Low: 17 °F

    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow before noon. Mostly cloudy, with a high near 26.

    High: 26 °F

    Chance Snow
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 5.

    Low: 5 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a temperature rising to around 24 by 5am. Wind chill values between 5 and 10. South wind 5 to 14 mph, with gusts as high as 23 mph.
Tuesday
Partly sunny, with a high near 38. Southwest wind 11 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
Rain likely, mainly between midnight and 3am. Cloudy, with a low around 33. Breezy, with a south southwest wind 11 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Scattered rain showers, mixing with snow after 9am, then gradually ending. Mostly cloudy, with a temperature rising to near 37 by 9am, then falling to around 30 during the remainder of the day. Breezy, with a northwest wind 15 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 50%.
Wednesday Night
Mostly cloudy, with a low around 20. West northwest wind 6 to 11 mph, with gusts as high as 18 mph.
Thursday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 28. West wind 5 to 7 mph.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 17. North northwest wind 5 to 7 mph.
Friday
A 30 percent chance of snow before noon. Mostly cloudy, with a high near 26.
Friday Night
Mostly cloudy, with a low around 5.
Saturday
Mostly cloudy, with a high near 13.
Saturday Night
Mostly cloudy, with a low around 2.
Sunday
Mostly sunny, with a high near 18.
Sunday Night
Mostly cloudy, with a low around 8.
Monday
Mostly cloudy, with a high near 28.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Potomac IL
 40.3°N 87.79°W (Elev. 673 ft)
Last Update:
8:37 pm CST Dec 8, 2025
Forecast Valid:
9pm CST Dec 8, 2025-6pm CST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation