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

-18°F

-28°C

Humidity 74%
Wind Speed Calm
Barometer 30.31 in (1029.7 mb)
Dewpoint -24°F (-31°C)
Visibility 9.00 mi
Last update 29 Jan 3:55 am CST
Extended Forecast for

Melvina WI

  • Today

    Today: Sunny, with a high near 12. Wind chill values as low as -7. Calm wind.

    High: 12 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around -5. Light northwest wind.

    Low: -5 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 14. Wind chill values as low as -15. Light north wind increasing to 5 to 9 mph in the morning.

    High: 14 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around -1. Wind chill values as low as -10. Northwest wind around 6 mph.

    Low: -1 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 21. Light northwest wind.

    High: 21 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 4. Calm wind becoming south around 6 mph after midnight.

    Low: 4 °F

    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of snow. Partly sunny, with a high near 25. South wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 25 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 16. Southwest wind around 6 mph becoming northwest after midnight.

    Low: 16 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 28. Northwest wind 3 to 6 mph.

    High: 28 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 12. Wind chill values as low as -7. Calm wind.
Tonight
Partly cloudy, with a low around -5. Light northwest wind.
Friday
Mostly sunny, with a high near 14. Wind chill values as low as -15. Light north wind increasing to 5 to 9 mph in the morning.
Friday Night
Mostly clear, with a low around -1. Wind chill values as low as -10. Northwest wind around 6 mph.
Saturday
Sunny, with a high near 21. Light northwest wind.
Saturday Night
Partly cloudy, with a low around 4. Calm wind becoming south around 6 mph after midnight.
Sunday
A 50 percent chance of snow. Partly sunny, with a high near 25. South wind 6 to 9 mph, with gusts as high as 18 mph.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 16. Southwest wind around 6 mph becoming northwest after midnight.
Monday
Partly sunny, with a high near 28. Northwest wind 3 to 6 mph.
Monday Night
Mostly cloudy, with a low around 9. Calm wind.
Tuesday
A 20 percent chance of snow. Partly sunny, with a high near 26. Calm wind becoming northeast around 5 mph.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 11. Light and variable wind.
Wednesday
A 30 percent chance of snow. Partly sunny, with a high near 27. Calm wind becoming west around 6 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Melvina WI
 43.8°N 90.79°W
Last Update:
3:16 am CST Jan 29, 2026
Forecast Valid:
4am CST Jan 29, 2026-6pm CST Feb 4, 2026
 
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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