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 >

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

3°F

-16°C

Humidity 85%
Wind Speed Calm
Barometer 29.98 in (1017.6 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Last update 2 Jan 8:55 am CST
Extended Forecast for

Warrens WI

  • Today

    Today: Mostly sunny, with a high near 16. Wind chill values as low as -4. Northwest wind 5 to 7 mph.

    High: 16 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 8. Light northwest wind.

    Low: 8 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 21. Calm wind becoming west around 5 mph.

    High: 21 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 0. Calm wind.

    Low: 0 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of snow after noon, mixing with freezing rain after 3pm. Partly sunny, with a high near 26. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 30%.

    High: 26 °F

    Mostly Sunny
    then Chance
    Wintry Mix

  • Sunday Night

    Sunday Night: A chance of snow and freezing rain before 9pm, then a chance of snow between 9pm and midnight. Mostly cloudy, with a low around 18. South wind 5 to 7 mph, with gusts as high as 18 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Chance Wintry
    Mix then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 37. Light and variable wind.

    High: 37 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 37. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 37 °F

    Chance Rain

Detailed Forecast

Today
Mostly sunny, with a high near 16. Wind chill values as low as -4. Northwest wind 5 to 7 mph.
Tonight
Mostly cloudy, with a low around 8. Light northwest wind.
Saturday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 21. Calm wind becoming west around 5 mph.
Saturday Night
Mostly clear, with a low around 0. Calm wind.
Sunday
A chance of snow after noon, mixing with freezing rain after 3pm. Partly sunny, with a high near 26. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
A chance of snow and freezing rain before 9pm, then a chance of snow between 9pm and midnight. Mostly cloudy, with a low around 18. South wind 5 to 7 mph, with gusts as high as 18 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 37. Light and variable wind.
Monday Night
Mostly cloudy, with a low around 23. Calm wind.
Tuesday
A 30 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 37. Calm wind becoming southwest 5 to 7 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 20. West wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 38. Light and variable wind becoming southwest around 6 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 25. Light south wind.
Thursday
A 20 percent chance of rain. Mostly cloudy, with a high near 39. Light and variable wind becoming southeast around 6 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Warrens WI
 44.14°N 90.51°W
Last Update:
8:07 am CST Jan 2, 2026
Forecast Valid:
9am 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