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.

Overcast

15°F

-9°C

Humidity 64%
Wind Speed NW 5 mph
Barometer 30.28 in (1027.2 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 22 Feb 1:55 am CST
Extended Forecast for

Melvina WI

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 12. Wind chill values as low as -5. North wind 8 to 14 mph, with gusts as high as 26 mph.

    Low: 12 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of flurries between 8am and 2pm. Partly sunny, with a high near 18. Wind chill values as low as -8. Blustery, with a north wind 14 to 18 mph, with gusts as high as 29 mph.

    High: 18 °F

    Chance
    Flurries and
    Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 5. Wind chill values as low as -5. Northwest wind 6 to 13 mph, with gusts as high as 25 mph.

    Low: 5 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 25. Wind chill values as low as -6. Northwest wind around 6 mph becoming calm in the afternoon.

    High: 25 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 11. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 20 mph.

    Low: 11 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Snow likely, mainly after noon. Partly sunny, with a high near 36. South wind around 10 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 36 °F

    Snow Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 15. Northwest wind around 10 mph, with gusts as high as 21 mph.

    Low: 15 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of snow after noon. Mostly sunny, with a high near 30. Northwest wind 5 to 8 mph.

    High: 30 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 12. Light and variable wind becoming east around 5 mph after midnight.

    Low: 12 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 12. Wind chill values as low as -5. North wind 8 to 14 mph, with gusts as high as 26 mph.
Sunday
A chance of flurries between 8am and 2pm. Partly sunny, with a high near 18. Wind chill values as low as -8. Blustery, with a north wind 14 to 18 mph, with gusts as high as 29 mph.
Sunday Night
Partly cloudy, with a low around 5. Wind chill values as low as -5. Northwest wind 6 to 13 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 25. Wind chill values as low as -6. Northwest wind around 6 mph becoming calm in the afternoon.
Monday Night
Mostly cloudy, with a low around 11. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 20 mph.
Tuesday
Snow likely, mainly after noon. Partly sunny, with a high near 36. South wind around 10 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Tuesday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 15. Northwest wind around 10 mph, with gusts as high as 21 mph.
Wednesday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 30. Northwest wind 5 to 8 mph.
Wednesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 12. Light and variable wind becoming east around 5 mph after midnight.
Thursday
A 30 percent chance of snow before noon. Mostly sunny, with a high near 34. East wind 5 to 7 mph becoming west in the afternoon.
Thursday Night
Mostly clear, with a low around 21. Southwest wind around 6 mph.
Friday
Mostly sunny, with a high near 46. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 23. Southwest wind around 9 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Saturday
A 20 percent chance of snow. Partly sunny, with a high near 35. Northwest wind 9 to 11 mph, with gusts as high as 21 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:
1:41 am CST Feb 22, 2026
Forecast Valid:
2am CST Feb 22, 2026-6pm CST Feb 28, 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