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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Overcast

22°F

-6°C

Humidity 77%
Wind Speed SW 5 mph
Barometer 29.91 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 2 Jan 2:55 am CST
Extended Forecast for

Hennepin IL

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 22. Northwest wind around 5 mph becoming calm.

    Low: 22 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 27. North wind around 5 mph.

    High: 27 °F

    Partly Sunny

  • Friday Night

    Friday Night: Cloudy, with a low around 21. North wind around 5 mph.

    Low: 21 °F

    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 32. Calm wind becoming northwest around 5 mph.

    High: 32 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 22. Northwest wind around 5 mph becoming calm.
Friday
Partly sunny, with a high near 27. North wind around 5 mph.
Friday Night
Cloudy, with a low around 21. North wind around 5 mph.
Saturday
Mostly sunny, with a high near 32. Calm wind becoming northwest around 5 mph.
Saturday Night
Mostly clear, with a low around 17.
Sunday
Partly sunny, with a high near 33.
Sunday Night
Mostly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 47.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Partly sunny, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 36.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hennepin IL
 41.24°N 89.32°W (Elev. 499 ft)
Last Update:
2:36 am CST Jan 2, 2026
Forecast Valid:
3am CST Jan 2, 2026-6pm CST Jan 8, 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