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.

Overcast

39°F

4°C

Humidity 62%
Wind Speed NW 15 G 20 mph
Barometer 29.60 in (1003.1 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 13 Jan 11:55 pm CST
Extended Forecast for

3 Miles SW Warrens WI

  • Overnight

    Overnight: A chance of flurries. Mostly clear early, then becoming mostly cloudy, with a low around 15. Blustery, with a north wind 18 to 21 mph, with gusts as high as 34 mph.

    Low: 15 °F

    Chance
    Flurries and
    Blustery

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a steady temperature around 18. Wind chill values as low as -2. Blustery, with a north wind 14 to 21 mph, with gusts as high as 33 mph.

    High: 18 °F

    Decreasing
    Clouds and
    Blustery

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 4. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 21 mph.

    Low: 4 °F

    Mostly Clear

  • Thursday

    Thursday: A 50 percent chance of snow after noon. Increasing clouds, with a high near 24. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.

    High: 24 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Snow. Low around 22. Southwest wind 8 to 10 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 22 °F

    Snow

  • Friday

    Friday: Snow. High near 32. West wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 32 °F

    Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 7. Northwest wind 10 to 14 mph, with gusts as high as 25 mph.

    Low: 7 °F

    Chance Snow

  • Saturday

    Saturday: A 20 percent chance of snow. Mostly cloudy, with a high near 14. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 14 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around -2. Northwest wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: -2 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of flurries. Mostly clear early, then becoming mostly cloudy, with a low around 15. Blustery, with a north wind 18 to 21 mph, with gusts as high as 34 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a steady temperature around 18. Wind chill values as low as -2. Blustery, with a north wind 14 to 21 mph, with gusts as high as 33 mph.
Wednesday Night
Mostly clear, with a low around 4. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 21 mph.
Thursday
A 50 percent chance of snow after noon. Increasing clouds, with a high near 24. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.
Thursday Night
Snow. Low around 22. Southwest wind 8 to 10 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Friday
Snow. High near 32. West wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 7. Northwest wind 10 to 14 mph, with gusts as high as 25 mph.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 14. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, with a low around -2. Northwest wind 7 to 9 mph, with gusts as high as 20 mph.
Sunday
A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 13. West wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 0. West wind around 10 mph, with gusts as high as 21 mph.
M.L.King Day
Partly sunny, with a high near 11. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around -7. Northwest wind 5 to 9 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 12. West wind 5 to 8 mph becoming south in the afternoon.
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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:
11:21 pm CST Jan 13, 2026
Forecast Valid:
1am CST Jan 14, 2026-6pm CST Jan 20, 2026
 
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Additional Resources

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Chance of Precipitation