National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Overcast

23°F

-5°C

Humidity 92%
Wind Speed Calm
Barometer 30.02 in (1018.2 mb)
Dewpoint 21°F (-6°C)
Visibility 9.00 mi
Last update 2 Feb 1:55 am CST
Extended Forecast for

Sparta WI

  • Overnight

    Overnight: Mostly cloudy, with a low around 11. West wind around 5 mph.

    Low: 11 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 23. Northwest wind 3 to 7 mph.

    High: 23 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 4. Light northwest wind.

    Low: 4 °F

    Decreasing
    Clouds

  • 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. 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

Detailed Forecast

Overnight
Mostly cloudy, with a low around 11. West wind around 5 mph.
Monday
Partly sunny, with a high near 23. Northwest wind 3 to 7 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 4. Light northwest 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. 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 afternoon.
Saturday Night
Partly cloudy, with a low around 14. Light south wind.
Sunday
Mostly sunny, with a high near 32. Light south wind.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
Last Update:
1:58 am CST Feb 2, 2026
Forecast Valid:
2am CST Feb 2, 2026-6pm CST Feb 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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