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.

Fair

40°F

4°C

Humidity 76%
Wind Speed Calm
Barometer 29.73 in (1007.9 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 7 Jan 5:55 pm CST
Extended Forecast for

Melvina WI

  • Tonight

    Tonight: Partly cloudy, with a low around 31. South wind around 7 mph.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Rain, mainly after 2pm. High near 43. South wind around 6 mph becoming light and variable. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Mostly Cloudy
    then Rain

  • Thursday Night

    Thursday Night: Rain before 2am, then rain and snow. Low around 33. Northeast wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain then
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow before 9am, then a chance of snow between 9am and noon. Mostly cloudy, with a high near 39. Northwest wind 5 to 10 mph becoming light north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    High: 39 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 26. Calm wind becoming northwest around 5 mph after midnight.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow likely. Mostly cloudy, with a high near 31. Northwest wind 5 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 31 °F

    Snow Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 17. Northwest wind around 14 mph, with gusts as high as 26 mph.

    Low: 17 °F

    Chance Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 27. Northwest wind 7 to 11 mph, with gusts as high as 23 mph.

    High: 27 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17. Southwest wind around 7 mph.

    Low: 17 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 31. South wind around 7 mph.
Thursday
Rain, mainly after 2pm. High near 43. South wind around 6 mph becoming light and variable. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain before 2am, then rain and snow. Low around 33. Northeast wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Friday
A chance of rain and snow before 9am, then a chance of snow between 9am and noon. Mostly cloudy, with a high near 39. Northwest wind 5 to 10 mph becoming light north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 26. Calm wind becoming northwest around 5 mph after midnight.
Saturday
Snow likely. Mostly cloudy, with a high near 31. Northwest wind 5 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Saturday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 17. Northwest wind around 14 mph, with gusts as high as 26 mph.
Sunday
Mostly sunny, with a high near 27. Northwest wind 7 to 11 mph, with gusts as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 17. Southwest wind around 7 mph.
Monday
Partly sunny, with a high near 37. West wind 7 to 9 mph, with gusts as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 27. West wind 6 to 8 mph, with gusts as high as 18 mph.
Tuesday
A 20 percent chance of rain. Mostly cloudy, with a high near 37. West wind around 7 mph.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. West wind around 7 mph becoming northwest after midnight. Chance of precipitation is 30%.
Wednesday
A 20 percent chance of snow. Mostly cloudy, with a high near 32. Northwest wind 7 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Melvina WI
 43.8°N 90.79°W
Last Update:
5:16 pm CST Jan 7, 2026
Forecast Valid:
6pm CST Jan 7, 2026-6pm CST Jan 14, 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