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

-5°F

-21°C

Humidity 80%
Wind Speed Calm
Barometer 30.37 in (1030.9 mb)
Dewpoint -10°F (-23°C)
Visibility 10.00 mi
Last update 4 Feb 3:55 am CST
Extended Forecast for

Melvina WI

  • Today

    Today: Mostly sunny, with a high near 25. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 25 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of snow after 5am. Increasing clouds, with a steady temperature around 17. Light and variable wind becoming southwest 5 to 9 mph in the evening. Winds could gust as high as 22 mph.

    Low: 17 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 20 percent chance of snow before 9am. Mostly cloudy, with a high near 37. Southwest wind 8 to 11 mph becoming west in the afternoon. Winds could gust as high as 26 mph.

    High: 37 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: A slight chance of freezing rain after midnight, mixing with rain after 3am. Mostly cloudy, with a low around 29. Light west wind becoming northwest 10 to 15 mph in the evening. Winds could gust as high as 28 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Freezing
    Rain

  • Friday

    Friday: Partly sunny, with a high near 38. Breezy, with a northwest wind 11 to 16 mph, with gusts as high as 29 mph.

    High: 38 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 12. North wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.

    Low: 12 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 31. Calm wind becoming south 5 to 7 mph in the morning.

    High: 31 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 21. South wind around 6 mph.

    Low: 21 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 36. Southeast wind around 6 mph becoming calm in the afternoon.

    High: 36 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 25. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Tonight
A 20 percent chance of snow after 5am. Increasing clouds, with a steady temperature around 17. Light and variable wind becoming southwest 5 to 9 mph in the evening. Winds could gust as high as 22 mph.
Thursday
A 20 percent chance of snow before 9am. Mostly cloudy, with a high near 37. Southwest wind 8 to 11 mph becoming west in the afternoon. Winds could gust as high as 26 mph.
Thursday Night
A slight chance of freezing rain after midnight, mixing with rain after 3am. Mostly cloudy, with a low around 29. Light west wind becoming northwest 10 to 15 mph in the evening. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 38. Breezy, with a northwest wind 11 to 16 mph, with gusts as high as 29 mph.
Friday Night
Partly cloudy, with a low around 12. North wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Saturday
Mostly sunny, with a high near 31. Calm wind becoming south 5 to 7 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 21. South wind around 6 mph.
Sunday
Mostly sunny, with a high near 36. Southeast wind around 6 mph becoming calm in the afternoon.
Sunday Night
Partly cloudy, with a low around 22. Light south wind.
Monday
Mostly sunny, with a high near 43. South wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 28. South wind around 6 mph.
Tuesday
A 20 percent chance of rain. Mostly sunny, with a high near 43. South wind around 7 mph becoming northwest in the afternoon.
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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:
4:08 am CST Feb 4, 2026
Forecast Valid:
4am CST Feb 4, 2026-6pm CST Feb 10, 2026
 
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Additional Resources

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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