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

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

25°F

-4°C

Humidity 54%
Wind Speed Calm
Barometer 30.38 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Last update 23 Feb 6:55 pm CST
Extended Forecast for

Hennepin IL

  • Tonight

    Tonight: Increasing clouds, with a low around 17. Light and variable wind becoming south 5 to 10 mph after midnight.

    Low: 17 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy, with a high near 46. Breezy, with a south wind 10 to 20 mph, with gusts as high as 35 mph.

    High: 46 °F

    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 39. Northwest wind 5 to 10 mph.

    High: 39 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 9pm, then a chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 50%. New snow accumulation of 1 to 2 inches possible.

    Low: 26 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 17. Light and variable wind becoming south 5 to 10 mph after midnight.
Tuesday
Cloudy, with a high near 46. Breezy, with a south wind 10 to 20 mph, with gusts as high as 35 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Northwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 39. Northwest wind 5 to 10 mph.
Wednesday Night
A chance of rain and snow before 9pm, then a chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 50%. New snow accumulation of 1 to 2 inches possible.
Thursday
Mostly sunny, with a high near 42.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 58.
Friday Night
Mostly clear, with a low around 32.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
A 40 percent chance of snow. Partly sunny, with a high near 37.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 22.
Monday
A 30 percent chance of snow. Mostly cloudy, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hennepin IL
 41.26°N 89.35°W (Elev. 466 ft)
Last Update:
6:31 pm CST Feb 23, 2026
Forecast Valid:
7pm CST Feb 23, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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