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

70°F

21°C

Humidity 88%
Wind Speed Calm
Barometer 29.89 in (1012.1 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 26 Aug 8:55 am CDT
Extended Forecast for

Melvina WI

  • Today

    Today: A 20 percent chance of showers after 3pm. Mostly sunny, with a high near 81. Light west wind becoming northwest 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 58. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. Light and variable wind.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. Calm wind becoming south around 5 mph after midnight.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers. Mostly cloudy, with a high near 82. Breezy, with a south wind 7 to 16 mph, with gusts as high as 26 mph.

    High: 82 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Breezy, with a south wind 13 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 60%.

    Low: 66 °F

    Chance
    T-storms then
    Showers
    Likely and
    Breezy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Breezy, with a south wind 13 to 16 mph, with gusts as high as 31 mph.

    High: 86 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Today
A 20 percent chance of showers after 3pm. Mostly sunny, with a high near 81. Light west wind becoming northwest 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Tonight
Mostly clear, with a low around 58. Northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 53. Calm wind.
Friday
Sunny, with a high near 83. Light and variable wind.
Friday Night
Partly cloudy, with a low around 62. Calm wind becoming south around 5 mph after midnight.
Saturday
A 30 percent chance of showers. Mostly cloudy, with a high near 82. Breezy, with a south wind 7 to 16 mph, with gusts as high as 26 mph.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Breezy, with a south wind 13 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Breezy, with a south wind 13 to 16 mph, with gusts as high as 31 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68. South wind around 8 mph, with gusts as high as 22 mph.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 87. Southwest wind around 7 mph.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 64. Light southwest wind.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 85. Light southwest wind.
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ABOUT THIS FORECAST

 
Point Forecast:
Melvina WI
 43.8°N 90.79°W
Last Update:
9:16 am CDT Aug 26, 2026
Forecast Valid:
9am CDT Aug 26, 2026-6pm CDT Sep 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