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

37°F

3°C

Humidity 57%
Wind Speed Calm
Barometer 30.30 in (1027.3 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 20 Apr 8:55 am CDT
Extended Forecast for

Melvina WI

  • Today

    Today: Sunny, with a high near 57. South wind 6 to 13 mph.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. South wind 8 to 13 mph, with gusts as high as 24 mph.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 74. South wind 6 to 9 mph becoming northwest in the afternoon.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 42. Calm wind.

    Low: 42 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 76. Southeast wind 5 to 9 mph.

    High: 76 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59. South wind 7 to 10 mph, with gusts as high as 22 mph.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 77 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 53. Breezy, with a south wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.

    Low: 53 °F

    Showers and
    Breezy

  • Friday

    Friday: A 20 percent chance of showers. Partly sunny, with a high near 64. West wind 11 to 14 mph, with gusts as high as 22 mph.

    High: 64 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 57. South wind 6 to 13 mph.
Tonight
Mostly cloudy, with a low around 44. South wind 8 to 13 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 74. South wind 6 to 9 mph becoming northwest in the afternoon.
Tuesday Night
Clear, with a low around 42. Calm wind.
Wednesday
Sunny, with a high near 76. Southeast wind 5 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 59. South wind 7 to 10 mph, with gusts as high as 22 mph.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 53. Breezy, with a south wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 64. West wind 11 to 14 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 40. Northwest wind 7 to 9 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 61. Northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 39. Northwest wind 5 to 7 mph.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 62. West wind 5 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:
7:11 am CDT Apr 20, 2026
Forecast Valid:
9am CDT Apr 20, 2026-6pm CDT Apr 26, 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