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

22°F

-6°C

Humidity 92%
Wind Speed Calm
Barometer 29.89 in (1013.1 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 15 Feb 2:55 am CST
Extended Forecast for

Melvina WI

  • Overnight

    Overnight: Mostly clear, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 55. Light northwest wind.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39. Calm wind becoming south 5 to 9 mph after midnight. Winds could gust as high as 20 mph.

    Low: 39 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 59. Southwest wind 5 to 9 mph becoming light and variable in the afternoon. Winds could gust as high as 20 mph.

    High: 59 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. Calm wind becoming east 5 to 7 mph after midnight.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 52. Breezy, with an east wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 52 °F

    Mostly Cloudy
    then Slight
    Chance Rain
    and Breezy

  • Tuesday Night

    Tuesday Night: Rain likely, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 42. Breezy, with an east wind 10 to 18 mph becoming south after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 70%.

    Low: 42 °F

    Rain Likely
    and Breezy

  • Wednesday

    Wednesday: A 50 percent chance of rain. Mostly sunny, with a high near 54. Breezy, with a south wind 10 to 16 mph becoming west in the afternoon. Winds could gust as high as 26 mph.

    High: 54 °F

    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow before midnight, then a slight chance of snow. Partly cloudy, with a low around 29. West wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

Detailed Forecast

Overnight
Mostly clear, with a low around 28. Calm wind.
Sunday
Sunny, with a high near 55. Light northwest wind.
Sunday Night
Partly cloudy, with a low around 39. Calm wind becoming south 5 to 9 mph after midnight. Winds could gust as high as 20 mph.
Washington's Birthday
Mostly sunny, with a high near 59. Southwest wind 5 to 9 mph becoming light and variable in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 35. Calm wind becoming east 5 to 7 mph after midnight.
Tuesday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 52. Breezy, with an east wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph.
Tuesday Night
Rain likely, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 42. Breezy, with an east wind 10 to 18 mph becoming south after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of rain. Mostly sunny, with a high near 54. Breezy, with a south wind 10 to 16 mph becoming west in the afternoon. Winds could gust as high as 26 mph.
Wednesday Night
A slight chance of rain and snow before midnight, then a slight chance of snow. Partly cloudy, with a low around 29. West wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Thursday
A chance of rain and snow after noon. Mostly sunny, with a high near 43. West wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. North wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 33. Northwest wind 9 to 11 mph, with gusts as high as 20 mph.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 17. Northwest wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 30. Northwest wind around 7 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:
1:51 am CST Feb 15, 2026
Forecast Valid:
3am CST Feb 15, 2026-6pm CST Feb 21, 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