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

Lake-Effect Snow through Friday; Strong Winds in the Northern and Central Plains

A clipper-like system will drop down from Canada on Thursday, bringing wintry weather from the Upper Midwest to the Great Lakes through Friday. This system is expected to bring strong northerly winds to much of the northern and central High Plains Thursday afternoon through Friday, with gusts up to 60 mph expected. Read More >

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

14°F

-10°C

Humidity 59%
Wind Speed Calm
Barometer 30.14 in (1022.6 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Last update 14 Jan 9:55 pm CST
Extended Forecast for

Sparta WI

  • Tonight

    Tonight: Partly cloudy, with a low around 3. Northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 3 °F

    Partly Cloudy

  • Thursday

    Thursday: Snow, mainly after 2pm. High near 25. Wind chill values as low as zero. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 25 °F

    Partly Sunny
    then Snow

  • Thursday Night

    Thursday Night: Snow likely before 7pm, then snow likely, possibly mixed with freezing rain between 7pm and 9pm, then snow likely after 9pm. Cloudy, with a temperature rising to around 30 by 5am. Southwest wind around 6 mph becoming west after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. New snow accumulation of 1 to 2 inches possible.

    Low: 23 °F⇑

    Wintry Mix
    Likely then
    Snow Likely

  • Friday

    Friday: Snow. High near 33. West wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 33 °F

    Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 7. Northwest wind 7 to 11 mph, with gusts as high as 23 mph.

    Low: 7 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 13. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 13 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around -2. Northwest wind 3 to 8 mph. Winds could gust as high as 20 mph.

    Low: -2 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 14. Southwest wind 3 to 8 mph. Winds could gust as high as 18 mph.

    High: 14 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around -2. Northwest wind around 7 mph, with gusts as high as 20 mph.

    Low: -2 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 3. Northwest wind 5 to 8 mph becoming calm after midnight.
Thursday
Snow, mainly after 2pm. High near 25. Wind chill values as low as zero. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow likely before 7pm, then snow likely, possibly mixed with freezing rain between 7pm and 9pm, then snow likely after 9pm. Cloudy, with a temperature rising to around 30 by 5am. Southwest wind around 6 mph becoming west after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. New snow accumulation of 1 to 2 inches possible.
Friday
Snow. High near 33. West wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 7. Northwest wind 7 to 11 mph, with gusts as high as 23 mph.
Saturday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 13. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, with a low around -2. Northwest wind 3 to 8 mph. Winds could gust as high as 20 mph.
Sunday
A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 14. Southwest wind 3 to 8 mph. Winds could gust as high as 18 mph.
Sunday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around -2. Northwest wind around 7 mph, with gusts as high as 20 mph.
M.L.King Day
Partly sunny, with a high near 8. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around -3. West wind around 6 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Tuesday
Mostly sunny, with a high near 14. Calm wind becoming west around 6 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 3. Light west wind.
Wednesday
Partly sunny, with a high near 20. West wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
Last Update:
8:31 pm CST Jan 14, 2026
Forecast Valid:
10pm CST Jan 14, 2026-6pm CST Jan 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation