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

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

27°F

-3°C

Humidity 82%
Wind Speed Calm
Barometer 30.04 in (1018.8 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 12 Jan 4:55 am CST
Extended Forecast for

3 Miles SW Warrens WI

  • Today

    Today: Mostly sunny, with a high near 42. West wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 42 °F

    Mostly Sunny

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 2am. Mostly cloudy, with a low around 30. Southwest wind 5 to 10 mph, with gusts as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly before noon. Partly sunny, with a high near 43. West wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 43 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 17. Northwest wind 11 to 15 mph, with gusts as high as 29 mph.

    Low: 17 °F

    Cloudy then
    Slight Chance
    Snow

  • Wednesday

    Wednesday: A 20 percent chance of snow before noon. Partly sunny, with a high near 25. Blustery, with a north wind 13 to 18 mph, with gusts as high as 31 mph.

    High: 25 °F

    Blustery.
    Slight Chance
    Snow then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 5. North wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 23 mph.

    Low: 5 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow after noon. Mostly sunny, with a high near 25. Calm wind becoming south 5 to 7 mph in the morning.

    High: 25 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Snow likely. Mostly cloudy, with a low around 18. South wind around 7 mph. Chance of precipitation is 70%.

    Low: 18 °F

    Snow Likely

  • Friday

    Friday: Snow. High near 29. West wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    High: 29 °F

    Snow

Detailed Forecast

Today
Mostly sunny, with a high near 42. West wind 6 to 9 mph, with gusts as high as 20 mph.
Tonight
A 50 percent chance of rain, mainly after 2am. Mostly cloudy, with a low around 30. Southwest wind 5 to 10 mph, with gusts as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A 40 percent chance of rain, mainly before noon. Partly sunny, with a high near 43. West wind 10 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 17. Northwest wind 11 to 15 mph, with gusts as high as 29 mph.
Wednesday
A 20 percent chance of snow before noon. Partly sunny, with a high near 25. Blustery, with a north wind 13 to 18 mph, with gusts as high as 31 mph.
Wednesday Night
Partly cloudy, with a low around 5. North wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 23 mph.
Thursday
A 30 percent chance of snow after noon. Mostly sunny, with a high near 25. Calm wind becoming south 5 to 7 mph in the morning.
Thursday Night
Snow likely. Mostly cloudy, with a low around 18. South wind around 7 mph. Chance of precipitation is 70%.
Friday
Snow. High near 29. West wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 7. Northwest wind around 10 mph, with gusts as high as 21 mph.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 14. Northwest wind 9 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, with a low around -2. Northwest wind around 10 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 16. West wind 9 to 11 mph, with gusts as high as 21 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Warrens WI
 44.09°N 90.54°W
Last Update:
4:32 am CST Jan 12, 2026
Forecast Valid:
5am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation