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

Danville, Vermilion County Airport (KDNV)

Lat: 40.2°NLon: 87.6°WElev: 696ft.

Fair

18°F

-8°C

Humidity 81%
Wind Speed Calm
Barometer 30.27 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Last update 24 Feb 12:55 am CST
Extended Forecast for

Potomac IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 18. South wind 3 to 6 mph.

    Low: 18 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 43. Breezy, with a south wind 8 to 13 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 43 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 28. South southwest wind 9 to 17 mph becoming west northwest after midnight. Winds could gust as high as 26 mph.

    Low: 28 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 43. West northwest wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 43 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 26. Northwest wind 5 to 7 mph becoming east northeast after midnight. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 26 °F

    Snow Likely

  • Thursday

    Thursday: A 30 percent chance of snow before noon. Mostly sunny, with a high near 43. East northeast wind around 7 mph becoming north northwest in the afternoon.

    High: 43 °F

    Chance Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26. North wind around 5 mph becoming calm.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 18. South wind 3 to 6 mph.
Tuesday
Mostly cloudy, with a high near 43. Breezy, with a south wind 8 to 13 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 38 mph.
Tuesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 28. South southwest wind 9 to 17 mph becoming west northwest after midnight. Winds could gust as high as 26 mph.
Wednesday
Sunny, with a high near 43. West northwest wind 8 to 14 mph, with gusts as high as 22 mph.
Wednesday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 26. Northwest wind 5 to 7 mph becoming east northeast after midnight. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Thursday
A 30 percent chance of snow before noon. Mostly sunny, with a high near 43. East northeast wind around 7 mph becoming north northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 26. North wind around 5 mph becoming calm.
Friday
Sunny, with a high near 55.
Friday Night
Mostly clear, with a low around 33.
Saturday
Mostly sunny, with a high near 55.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 39.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 23.
Monday
A chance of rain and snow. Partly sunny, with a high near 39.
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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:
1:05 am CST Feb 24, 2026
Forecast Valid:
1am CST Feb 24, 2026-6pm CST Mar 2, 2026
 
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