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 85%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 14 May 6:15 am CDT
Extended Forecast for

Potomac IL

  • Today

    Today: Sunny, with a high near 70. Calm wind becoming north around 5 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 49. South southeast wind 3 to 7 mph. Winds could gust as high as 15 mph.

    Low: 49 °F

    Increasing
    Clouds

  • Friday

    Friday: Showers likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 75. South wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 75 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 60. South wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 83. Southwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Low around 63. South wind 3 to 8 mph. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 83. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 83 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Breezy.

    High: 88 °F

    Breezy. Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 70. Calm wind becoming north around 5 mph.
Tonight
Increasing clouds, with a low around 49. South southeast wind 3 to 7 mph. Winds could gust as high as 15 mph.
Friday
Showers likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 75. South wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 60. South wind 8 to 11 mph, with gusts as high as 20 mph.
Saturday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 83. Southwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Low around 63. South wind 3 to 8 mph. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Partly sunny, with a high near 83. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 67.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Breezy.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 50%.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Breezy.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 61.
Wednesday
A chance of showers. Mostly cloudy, with a high near 77.
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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 May 14, 2026
Forecast Valid:
6am CDT May 14, 2026-6pm CDT May 20, 2026
 
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