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

42°F

6°C

Humidity 44%
Wind Speed N 8 G 23 mph
Barometer 30.01 in (1017.3 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 11 Mar 3:55 pm CDT
Extended Forecast for

4 Miles NW Melvina WI

  • Tonight

    Tonight: Mostly clear, with a low around 23. West wind 5 to 11 mph, with gusts as high as 24 mph.

    Low: 23 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of snow between 2pm and 4pm, then a chance of rain. Increasing clouds, with a high near 45. Breezy, with a light and variable wind becoming south 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 30%.

    High: 45 °F

    Sunny then
    Chance
    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: Rain, possibly mixed with snow before 10pm, then rain between 10pm and 4am, then a chance of snow after 4am. Patchy blowing snow after 5am. Low around 30. Windy, with a south wind 17 to 22 mph becoming west 23 to 28 mph after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Friday

    Friday: A 30 percent chance of snow before 7am. Patchy blowing snow before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 41. Windy, with a northwest wind 20 to 29 mph, with gusts as high as 48 mph.

    High: 41 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 23. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 23 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after 1pm. Mostly cloudy, with a high near 42. Calm wind becoming south around 6 mph in the afternoon.

    High: 42 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Snow. Low around 28. East wind 5 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.

    Low: 28 °F

    Snow

  • Sunday

    Sunday: Snow. High near 35. Breezy, with an east wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    High: 35 °F

    Snow and
    Breezy

  • Sunday Night

    Sunday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 11. Blustery, with a north wind 20 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 60%.

    Low: 11 °F

    Snow Likely
    and Blustery

Detailed Forecast

Tonight
Mostly clear, with a low around 23. West wind 5 to 11 mph, with gusts as high as 24 mph.
Thursday
A slight chance of snow between 2pm and 4pm, then a chance of rain. Increasing clouds, with a high near 45. Breezy, with a light and variable wind becoming south 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 30%.
Thursday Night
Rain, possibly mixed with snow before 10pm, then rain between 10pm and 4am, then a chance of snow after 4am. Patchy blowing snow after 5am. Low around 30. Windy, with a south wind 17 to 22 mph becoming west 23 to 28 mph after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday
A 30 percent chance of snow before 7am. Patchy blowing snow before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 41. Windy, with a northwest wind 20 to 29 mph, with gusts as high as 48 mph.
Friday Night
Partly cloudy, with a low around 23. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Saturday
A 20 percent chance of snow after 1pm. Mostly cloudy, with a high near 42. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
Snow. Low around 28. East wind 5 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
Sunday
Snow. High near 35. Breezy, with an east wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Sunday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 11. Blustery, with a north wind 20 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 60%.
Monday
Mostly cloudy, with a high near 22. Blustery, with a northwest wind 15 to 18 mph, with gusts as high as 29 mph.
Monday Night
Partly cloudy, with a low around -3. West wind 5 to 10 mph, with gusts as high as 22 mph.
Tuesday
Mostly sunny, with a high near 28. West wind 3 to 7 mph.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 15. Southeast wind around 5 mph.
Wednesday
Mostly cloudy, with a high near 39. South wind 5 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Melvina WI
 43.84°N 90.85°W
Last Update:
1:42 pm CDT Mar 11, 2026
Forecast Valid:
4pm CDT Mar 11, 2026-6pm CDT Mar 18, 2026
 
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Additional Resources

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Chance of Precipitation