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

45°F

7°C

Humidity 83%
Wind Speed Calm
Barometer 30.01 in (1017.4 mb)
Dewpoint 40°F (4°C)
Visibility 7.00 mi
Last update 5 Mar 9:55 am CST
Extended Forecast for

4 Miles NW Melvina WI

  • Today

    Today: Mostly cloudy, with a high near 49. East wind around 6 mph.

    High: 49 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 20 percent chance of showers after 5am. Mostly cloudy, with a low around 40. Southeast wind around 7 mph.

    Low: 40 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 9am. High near 62. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 62 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before midnight, then showers likely. Low around 36. South wind 7 to 14 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 36 °F

    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before noon. Partly sunny, with a high near 49. Northwest wind 7 to 14 mph, with gusts as high as 25 mph.

    High: 49 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32. Southwest wind 5 to 11 mph, with gusts as high as 24 mph.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 61. Southwest wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. Southwest wind around 10 mph, with gusts as high as 22 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 67. Southwest wind 7 to 11 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 49. East wind around 6 mph.
Tonight
A 20 percent chance of showers after 5am. Mostly cloudy, with a low around 40. Southeast wind around 7 mph.
Friday
Showers, with thunderstorms also possible after 9am. High near 62. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
Showers and possibly a thunderstorm before midnight, then showers likely. Low around 36. South wind 7 to 14 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
A 20 percent chance of showers before noon. Partly sunny, with a high near 49. Northwest wind 7 to 14 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 32. Southwest wind 5 to 11 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 61. Southwest wind 11 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 44. Southwest wind around 10 mph, with gusts as high as 22 mph.
Monday
Mostly sunny, with a high near 67. Southwest wind 7 to 11 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Partly cloudy, with a low around 39. West wind 6 to 9 mph becoming east after midnight. Winds could gust as high as 18 mph.
Tuesday
Showers likely. Mostly sunny, with a high near 58. Southeast wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Tuesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 28. North wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Wednesday
A 40 percent chance of snow showers. Partly sunny, with a high near 43. Northwest wind 11 to 14 mph, with gusts as high as 23 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Melvina WI
 43.84°N 90.85°W
Last Update:
8:27 am CST Mar 5, 2026
Forecast Valid:
10am CST Mar 5, 2026-6pm CDT Mar 11, 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