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

26°F

-3°C

Humidity 94%
Wind Speed Calm
Barometer 29.92 in (1014.9 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 12 Jan 7:55 pm CST
Extended Forecast for

Melvina WI

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 37 by 5am. Southwest wind 6 to 14 mph, with gusts as high as 24 mph.

    Low: 34 °F⇑

    Mostly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 44. Breezy, with a west wind 11 to 18 mph, with gusts as high as 33 mph.

    High: 44 °F

    Increasing
    Clouds and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 17. Blustery, with a northwest wind 15 to 21 mph, with gusts as high as 37 mph.

    Low: 17 °F

    Mostly Cloudy
    and Blustery

  • Wednesday

    Wednesday: Mostly sunny, with a high near 24. Blustery, with a north wind 16 to 21 mph, with gusts as high as 37 mph.

    High: 24 °F

    Mostly Sunny
    and Blustery

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 6. North wind 6 to 11 mph becoming light northwest after midnight. Winds could gust as high as 24 mph.

    Low: 6 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of snow after noon. Mostly sunny, with a high near 26. Calm wind becoming south 5 to 8 mph in the morning.

    High: 26 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Snow likely. Mostly cloudy, with a low around 21. South wind around 9 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    Low: 21 °F

    Snow Likely

  • Friday

    Friday: Snow. High near 30. Northwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

    High: 30 °F

    Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 7. Northwest wind 10 to 13 mph, with gusts as high as 24 mph.

    Low: 7 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, with a temperature rising to around 37 by 5am. Southwest wind 6 to 14 mph, with gusts as high as 24 mph.
Tuesday
Increasing clouds, with a high near 44. Breezy, with a west wind 11 to 18 mph, with gusts as high as 33 mph.
Tuesday Night
Mostly cloudy, with a low around 17. Blustery, with a northwest wind 15 to 21 mph, with gusts as high as 37 mph.
Wednesday
Mostly sunny, with a high near 24. Blustery, with a north wind 16 to 21 mph, with gusts as high as 37 mph.
Wednesday Night
Mostly clear, with a low around 6. North wind 6 to 11 mph becoming light northwest after midnight. Winds could gust as high as 24 mph.
Thursday
A 30 percent chance of snow after noon. Mostly sunny, with a high near 26. Calm wind becoming south 5 to 8 mph in the morning.
Thursday Night
Snow likely. Mostly cloudy, with a low around 21. South wind around 9 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Friday
Snow. High near 30. Northwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 7. Northwest wind 10 to 13 mph, with gusts as high as 24 mph.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 13. Northwest wind around 11 mph, with gusts as high as 22 mph.
Saturday Night
Mostly cloudy, with a low around 0. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.
Sunday
Partly sunny, with a high near 14. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 1. West wind 8 to 10 mph, with gusts as high as 21 mph.
M.L.King Day
Partly sunny, with a high near 17. Northwest wind 8 to 10 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:
8:36 pm CST Jan 12, 2026
Forecast Valid:
8pm CST Jan 12, 2026-6pm CST Jan 19, 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