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

40°F

4°C

Humidity 90%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 21 Mar 5:15 am CDT
Extended Forecast for

Potomac IL

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 81. Light and variable wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 17 mph.

    High: 81 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. South southwest wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Partly sunny, with a high near 72. Breezy, with a southwest wind 10 to 15 mph becoming north 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.

    High: 72 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 31. Blustery, with a north wind 13 to 22 mph, with gusts as high as 33 mph.

    Low: 31 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50. North wind around 10 mph, with gusts as high as 17 mph.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31. Northeast wind around 6 mph becoming light and variable.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 59. Southeast wind 6 to 9 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 59 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 81. Light and variable wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 17 mph.
Tonight
Mostly clear, with a low around 59. South southwest wind 8 to 10 mph, with gusts as high as 21 mph.
Sunday
A slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Partly sunny, with a high near 72. Breezy, with a southwest wind 10 to 15 mph becoming north 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 31. Blustery, with a north wind 13 to 22 mph, with gusts as high as 33 mph.
Monday
Mostly sunny, with a high near 50. North wind around 10 mph, with gusts as high as 17 mph.
Monday Night
Mostly cloudy, with a low around 31. Northeast wind around 6 mph becoming light and variable.
Tuesday
Partly sunny, with a high near 59. Southeast wind 6 to 9 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 61.
Wednesday Night
Mostly cloudy, with a low around 49.
Thursday
A chance of rain. Partly sunny, with a high near 73.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 37.
Friday
Partly sunny, with a high near 50.
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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:
4:36 am CDT Mar 21, 2026
Forecast Valid:
5am CDT Mar 21, 2026-6pm CDT Mar 27, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation