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.

A Few Clouds

40°F

4°C

Humidity 63%
Wind Speed N 10 mph
Barometer 29.92 in (1014.0 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 22 Mar 9:55 am CDT
Extended Forecast for

Melvina WI

  • Today

    Today: Mostly cloudy, with a high near 42. North wind around 15 mph.

    High: 42 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 24. North wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 24 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 50. Light and variable wind.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36. Calm wind becoming south around 6 mph after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 56. Southwest wind around 8 mph, with gusts as high as 18 mph.

    High: 56 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. South wind around 6 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 57. Southeast wind around 8 mph.

    High: 57 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. Southeast wind around 6 mph.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 58. Southwest wind 7 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 58 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, with a high near 42. North wind around 15 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 24. North wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 50. Light and variable wind.
Monday Night
Mostly cloudy, with a low around 36. Calm wind becoming south around 6 mph after midnight.
Tuesday
Mostly cloudy, with a high near 56. Southwest wind around 8 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 37. South wind around 6 mph.
Wednesday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 57. Southeast wind around 8 mph.
Wednesday Night
Mostly cloudy, with a low around 41. Southeast wind around 6 mph.
Thursday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 58. Southwest wind 7 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 25. North wind 8 to 11 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 43. North wind around 8 mph.
Friday Night
Mostly clear, with a low around 25. Southwest wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 51. West wind 6 to 11 mph, with gusts as high as 20 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Melvina WI
 43.8°N 90.79°W
Last Update:
9:39 am CDT Mar 22, 2026
Forecast Valid:
10am CDT Mar 22, 2026-6pm CDT Mar 28, 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