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

22°F

-6°C

Humidity 52%
Wind Speed W 3 mph
Barometer 30.49 in (1034.4 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Last update 23 Feb 12:55 pm CST
Extended Forecast for

Melvina WI

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 24. Calm wind.

    High: 24 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 12. Light south wind increasing to 6 to 11 mph after midnight. Winds could gust as high as 23 mph.

    Low: 12 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of snow, possibly mixing with rain after 2pm, then gradually ending. Partly sunny, with a high near 37. South wind 13 to 15 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 11. Wind chill values as low as -1. Northwest wind 11 to 15 mph, with gusts as high as 29 mph.

    Low: 11 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 25. Northwest wind 5 to 10 mph becoming light west in the afternoon. Winds could gust as high as 21 mph.

    High: 25 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow, mainly after midnight. Partly cloudy, with a low around 12. Calm wind.

    Low: 12 °F

    Chance Snow

  • Thursday

    Thursday: A 20 percent chance of snow before noon. Mostly sunny, with a high near 35. Calm wind becoming southwest around 6 mph in the morning.

    High: 35 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 22. Southwest wind 3 to 7 mph.

    Low: 22 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 48. South wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 24. Calm wind.
Tonight
Mostly cloudy, with a low around 12. Light south wind increasing to 6 to 11 mph after midnight. Winds could gust as high as 23 mph.
Tuesday
A chance of snow, possibly mixing with rain after 2pm, then gradually ending. Partly sunny, with a high near 37. South wind 13 to 15 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Tuesday Night
Mostly cloudy, with a low around 11. Wind chill values as low as -1. Northwest wind 11 to 15 mph, with gusts as high as 29 mph.
Wednesday
Sunny, with a high near 25. Northwest wind 5 to 10 mph becoming light west in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
A 30 percent chance of snow, mainly after midnight. Partly cloudy, with a low around 12. Calm wind.
Thursday
A 20 percent chance of snow before noon. Mostly sunny, with a high near 35. Calm wind becoming southwest around 6 mph in the morning.
Thursday Night
Mostly clear, with a low around 22. Southwest wind 3 to 7 mph.
Friday
Mostly sunny, with a high near 48. South wind 7 to 11 mph, with gusts as high as 21 mph.
Friday Night
Partly cloudy, with a low around 20. West wind around 9 mph, with gusts as high as 21 mph.
Saturday
A 20 percent chance of snow. Partly sunny, with a high near 33. North wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 9. North wind 6 to 8 mph.
Sunday
A 30 percent chance of snow. Mostly sunny, with a high near 27. Northeast wind 6 to 8 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:
12:26 pm CST Feb 23, 2026
Forecast Valid:
1pm CST Feb 23, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation