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.

Mostly Cloudy

16°F

-9°C

Humidity 56%
Wind Speed Calm
Barometer 30.44 in (1032.8 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Last update 7 Feb 9:55 am CST
Extended Forecast for

Sparta WI

  • Today

    Today: Increasing clouds, with a high near 25. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 25 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A slight chance of flurries before 1am. Mostly cloudy, with a low around 17. Southeast wind 5 to 7 mph.

    Low: 17 °F

    Slight Chance
    Flurries

  • Sunday

    Sunday: Partly sunny, with a high near 33. Southeast wind around 6 mph becoming calm in the afternoon.

    High: 33 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 45. Calm wind becoming southwest around 5 mph.

    High: 45 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 46. Calm wind becoming northwest around 6 mph in the morning.

    High: 46 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 23. Northwest wind around 5 mph becoming calm in the evening.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 38. Calm wind becoming northwest around 5 mph.

    High: 38 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 25. Calm wind becoming southeast around 5 mph in the afternoon.
Tonight
A slight chance of flurries before 1am. Mostly cloudy, with a low around 17. Southeast wind 5 to 7 mph.
Sunday
Partly sunny, with a high near 33. Southeast wind around 6 mph becoming calm in the afternoon.
Sunday Night
Mostly cloudy, with a low around 22. Calm wind.
Monday
Partly sunny, with a high near 45. Calm wind becoming southwest around 5 mph.
Monday Night
Mostly cloudy, with a low around 32. Calm wind.
Tuesday
Mostly cloudy, with a high near 46. Calm wind becoming northwest around 6 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 23. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 38. Calm wind becoming northwest around 5 mph.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 22. Calm wind.
Thursday
A 30 percent chance of snow. Partly sunny, with a high near 40. Calm wind becoming southeast around 5 mph.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 23. Calm wind.
Friday
A 20 percent chance of snow. Mostly sunny, with a high near 41. Light southeast wind.
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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:
7:43 am CST Feb 7, 2026
Forecast Valid:
10am CST Feb 7, 2026-6pm CST Feb 13, 2026
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation