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

Hazardous Weather Conditions

Current conditions at

Danville, Vermilion County Airport (KDNV)

Lat: 40.2°NLon: 87.6°WElev: 696ft.

Partly Cloudy

80°F

27°C

Humidity 75%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 71°F (22°C)
Visibility NA
Heat Index84°F (29°C)
Last update 13 Jul 10:55 am CDT
Extended Forecast for

Potomac IL

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 83. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 83 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 67. Light south southwest wind.

    Low: 67 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 87. Calm wind.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 70. Light south wind.

    Low: 70 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. South southwest wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 83. Calm wind becoming west southwest around 6 mph in the afternoon.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 67. Light south southwest wind.
Monday
Sunny, with a high near 87. Calm wind.
Monday Night
Partly cloudy, with a low around 68. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming south southeast around 5 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 70. Light south wind.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. South southwest wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 70.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86.
Thursday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 64.
Friday
A chance of showers. Mostly sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 64.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Potomac IL
 40.3°N 87.79°W (Elev. 673 ft)
Last Update:
8:41 am CDT Jul 13, 2025
Forecast Valid:
11am CDT Jul 13, 2025-6pm CDT Jul 19, 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