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

20°F

-7°C

Humidity 76%
Wind Speed Calm
Barometer 30.09 in (1020.8 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 2 Feb 7:55 am CST
Extended Forecast for

Sparta WI

  • Today

    Today: Partly sunny, with a high near 24. Northwest wind 3 to 7 mph.

    High: 24 °F

    Partly Sunny

  • Tonight

    Tonight: Isolated flurries before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Light and variable wind.

    Low: 3 °F

    Isolated
    Flurries

  • Tuesday

    Tuesday: Sunny, with a high near 22. Calm wind.

    High: 22 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 0. Calm wind.

    Low: 0 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 24. Light and variable wind.

    High: 24 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 9. Calm wind.

    Low: 9 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of rain and snow after noon. Partly sunny, with a high near 36. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 20%.

    High: 36 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A slight chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 25. West wind around 7 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 25 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 33. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 33 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 24. Northwest wind 3 to 7 mph.
Tonight
Isolated flurries before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Light and variable wind.
Tuesday
Sunny, with a high near 22. Calm wind.
Tuesday Night
Partly cloudy, with a low around 0. Calm wind.
Wednesday
Mostly sunny, with a high near 24. Light and variable wind.
Wednesday Night
Mostly cloudy, with a low around 9. Calm wind.
Thursday
A slight chance of rain and snow after noon. Partly sunny, with a high near 36. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 25. West wind around 7 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 33. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 7. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 25. Calm wind becoming west around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 13. Light south wind.
Sunday
Mostly sunny, with a high near 32. Calm wind becoming south around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.95°N 90.81°W
Last Update:
8:09 am CST Feb 2, 2026
Forecast Valid:
8am CST Feb 2, 2026-6pm CST Feb 8, 2026
 
Forecast Discussion
 
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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