Thunderstorms and Heavy Rainfall from the Plains to the Mid-Atlantic

Severe thunderstorms producing damaging winds are most likely over parts of the Dakotas into Minnesota from this afternoon into the overnight, with other isolated storms producing hail or wind over the northern High Plains. In the Northern Plains into the Upper Great Lakes and Mid-Atlantic, heavy to excessive rain may bring flash and urban flooding through Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Danville, Vermilion County Airport (KDNV)

Lat: 40.2°NLon: 87.6°WElev: 696ft.

Partly Cloudy

83°F

28°C

Humidity 61%
Wind Speed NE 8 mph
Barometer 30.10 in
Dewpoint 68°F (20°C)
Visibility 4.00 mi
Heat Index86°F (30°C)
Last update 7 Jul 11:15 am CDT
Extended Forecast for

Potomac IL

  • Today

    Today: Mostly sunny, with a high near 85. North northeast wind around 6 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. Light and variable wind.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 86. Calm wind.

    High: 86 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66. Light south southwest wind.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 88. Southwest wind 5 to 8 mph.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm.  Mostly cloudy, with a high near 84. West wind 3 to 6 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Showers
    Likely then
    T-storms
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 85. North northeast wind around 6 mph.
Tonight
Mostly clear, with a low around 64. Light and variable wind.
Wednesday
Increasing clouds, with a high near 86. Calm wind.
Wednesday Night
Mostly clear, with a low around 66. Light south southwest wind.
Thursday
Mostly sunny, with a high near 88. Southwest wind 5 to 8 mph.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 84. West wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 66.
Monday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Potomac IL
 40.3°N 87.79°W (Elev. 673 ft)
10:36 am CDT Jul 7, 2026
11am CDT Jul 7, 2026-6pm CDT Jul 13, 2026
 
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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