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

40°F

4°C

Humidity 92%
Wind Speed NW 14 G 20 mph
Barometer 29.72 in (1007.1 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 7 Mar 8:55 am CST
Extended Forecast for

Sparta WI

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a steady temperature around 36. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 36 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Southwest wind 5 to 11 mph, with gusts as high as 28 mph.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 62. Southwest wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 45. Southwest wind 7 to 10 mph, with gusts as high as 23 mph.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 66. Southwest wind around 6 mph becoming northwest in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 36. Light and variable wind becoming northeast around 6 mph after midnight.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers after noon. Mostly sunny, with a high near 52. East wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 52 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain and snow showers. Mostly cloudy, with a low around 28. Northeast wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    Low: 28 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A 40 percent chance of snow showers. Mostly cloudy, with a high near 43. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 43 °F

    Chance Snow
    Showers

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a steady temperature around 36. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.
Tonight
Partly cloudy, with a low around 31. Southwest wind 5 to 11 mph, with gusts as high as 28 mph.
Sunday
Mostly sunny, with a high near 62. Southwest wind 10 to 14 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 45. Southwest wind 7 to 10 mph, with gusts as high as 23 mph.
Monday
Mostly sunny, with a high near 66. Southwest wind around 6 mph becoming northwest in the afternoon.
Monday Night
Mostly clear, with a low around 36. Light and variable wind becoming northeast around 6 mph after midnight.
Tuesday
A 40 percent chance of showers after noon. Mostly sunny, with a high near 52. East wind 6 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 28. Northeast wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Wednesday
A 40 percent chance of snow showers. Mostly cloudy, with a high near 43. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 21. Northwest wind 3 to 8 mph. Winds could gust as high as 18 mph.
Thursday
Partly sunny, with a high near 47. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 30. South wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Friday
A slight chance of rain and snow showers. Mostly cloudy, with a high near 49. Southwest wind 9 to 15 mph becoming northwest in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
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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:
5:46 am CST Mar 7, 2026
Forecast Valid:
9am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
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Additional Resources

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Chance of Precipitation