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

25°F

-4°C

Humidity 77%
Wind Speed SW 12 mph
Barometer 30.34 in (1029.1 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 11 Jan 11:55 am CST
Extended Forecast for

5 Miles SSW Sparta WI

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 30. Southwest wind around 7 mph.

    High: 30 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy during the early evening, then becoming mostly clear, with a steady temperature around 26. Southwest wind 3 to 8 mph. Winds could gust as high as 20 mph.

    Low: 26 °F

    Mostly Clear

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 43. West wind around 6 mph becoming calm in the afternoon.

    High: 43 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Increasing clouds, with a low around 30. Calm wind becoming southwest around 6 mph after midnight.

    Low: 30 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 45. West wind 6 to 11 mph, with gusts as high as 23 mph.

    High: 45 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 22. West wind 9 to 13 mph, with gusts as high as 25 mph.

    Low: 22 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: A 20 percent chance of snow before noon. Partly sunny, with a high near 28. Blustery, with a north wind 11 to 16 mph, with gusts as high as 28 mph.

    High: 28 °F

    Blustery.
    Slight Chance
    Snow then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 9. North wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 23 mph.

    Low: 9 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow after noon. Mostly sunny, with a high near 27. Calm wind becoming south around 6 mph in the afternoon.

    High: 27 °F

    Mostly Sunny
    then Chance
    Snow

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 30. Southwest wind around 7 mph.
Tonight
Mostly cloudy during the early evening, then becoming mostly clear, with a steady temperature around 26. Southwest wind 3 to 8 mph. Winds could gust as high as 20 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 43. West wind around 6 mph becoming calm in the afternoon.
Monday Night
Increasing clouds, with a low around 30. Calm wind becoming southwest around 6 mph after midnight.
Tuesday
A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 45. West wind 6 to 11 mph, with gusts as high as 23 mph.
Tuesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 22. West wind 9 to 13 mph, with gusts as high as 25 mph.
Wednesday
A 20 percent chance of snow before noon. Partly sunny, with a high near 28. Blustery, with a north wind 11 to 16 mph, with gusts as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 9. North wind 5 to 10 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 27. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Snow likely. Mostly cloudy, with a low around 21. South wind around 6 mph. Chance of precipitation is 60%.
Friday
Snow likely. Mostly cloudy, with a high near 30. South wind 5 to 8 mph becoming west in the afternoon. Chance of precipitation is 70%.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 11. Northwest wind around 7 mph.
Saturday
Mostly cloudy, with a high near 19. Northwest wind 7 to 10 mph, with gusts as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Sparta WI
 43.89°N 90.82°W
Last Update:
12:01 pm CST Jan 11, 2026
Forecast Valid:
12pm CST Jan 11, 2026-6pm CST Jan 17, 2026
 
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Additional Resources

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