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

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Mostly Cloudy

18°F

-8°C

Humidity 65%
Wind Speed Calm
Barometer 29.83 in (1012.0 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Last update 5 Dec 4:55 am CST
Extended Forecast for

Sparta WI

  • Today

    Today: Snow, mainly after 9am. High near 29. Southwest wind around 8 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.

    High: 29 °F

    Snow

  • Tonight

    Tonight: Snow likely, possibly mixing with freezing rain after 9pm, then gradually ending. Mostly cloudy, with a low around 9. Southwest wind 6 to 9 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.

    Low: 9 °F

    Wintry Mix
    Likely then
    Mostly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 21. Calm wind.

    High: 21 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Snow likely. Mostly cloudy, with a low around 6. Calm wind. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 6 °F

    Snow Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 17. Calm wind becoming north around 5 mph.

    High: 17 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -6. Calm wind.

    Low: -6 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 21. Calm wind becoming south around 6 mph in the afternoon.

    High: 21 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Monday Night

    Monday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 11. South wind around 6 mph. Chance of precipitation is 70%.

    Low: 11 °F

    Snow Likely
    then Chance
    Snow

  • Tuesday

    Tuesday: A 40 percent chance of snow after noon. Mostly cloudy, with a high near 33. Southwest wind around 6 mph.

    High: 33 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Today
Snow, mainly after 9am. High near 29. Southwest wind around 8 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow likely, possibly mixing with freezing rain after 9pm, then gradually ending. Mostly cloudy, with a low around 9. Southwest wind 6 to 9 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Saturday
Increasing clouds, with a high near 21. Calm wind.
Saturday Night
Snow likely. Mostly cloudy, with a low around 6. Calm wind. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Sunday
Mostly sunny, with a high near 17. Calm wind becoming north around 5 mph.
Sunday Night
Partly cloudy, with a low around -6. Calm wind.
Monday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 21. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 11. South wind around 6 mph. Chance of precipitation is 70%.
Tuesday
A 40 percent chance of snow after noon. Mostly cloudy, with a high near 33. Southwest wind around 6 mph.
Tuesday Night
Snow. Low around 20. South wind around 6 mph becoming west after midnight. Chance of precipitation is 90%.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 31. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 2. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Thursday
A 20 percent chance of snow. Partly sunny, with a high near 19. Calm wind becoming west around 6 mph in the morning.
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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:
5:01 am CST Dec 5, 2025
Forecast Valid:
5am CST Dec 5, 2025-6pm CST Dec 11, 2025
 
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Additional Resources

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Chance of Precipitation