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

59°F

15°C

Humidity 97%
Wind Speed Calm
Barometer 30.09 in (1018.9 mb)
Dewpoint 58°F (14°C)
Visibility 8.00 mi
Last update 7 Jul 3:55 am CDT
Extended Forecast for

Melvina WI

  • Today

    Today: Mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm.

    Low: 66 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 89. Southwest wind 3 to 8 mph. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 66. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 66 °F

    Heavy Rain

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Light and variable wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. Calm wind.

    High: 83 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 86. Light and variable wind.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm.
Wednesday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 89. Southwest wind 3 to 8 mph. Chance of precipitation is 30%.
Wednesday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 66. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Light and variable wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly cloudy, with a low around 62. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. Calm wind.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 62. Calm wind.
Saturday
Sunny, with a high near 86. Light and variable wind.
Saturday Night
Mostly clear, with a low around 64. Calm wind.
Sunday
Sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 67. Light south wind.
Monday
Sunny, with a high near 91. Southwest wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Melvina WI
 43.8°N 90.76°W
Last Update:
4:51 am CDT Jul 7, 2026
Forecast Valid:
4am CDT Jul 7, 2026-6pm CDT Jul 13, 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