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.

Mostly Cloudy

36°F

2°C

Humidity 59%
Wind Speed Calm
Barometer 29.98 in (1016.1 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 25 Mar 4:55 am CDT
Extended Forecast for

Sparta WI

  • Today

    Today: Mostly sunny, with a high near 70. Light and variable wind becoming southwest 5 to 8 mph in the morning.

    High: 70 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 60. Light and variable wind becoming north 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 60 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24. North wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 20 mph.

    Low: 24 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 43. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 43 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 22. Northwest wind around 6 mph becoming calm in the evening.

    Low: 22 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 52. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34. Southwest wind around 5 mph becoming light and variable.

    Low: 34 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 64. South wind 5 to 9 mph.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 70. Light and variable wind becoming southwest 5 to 8 mph in the morning.
Tonight
Partly cloudy, with a low around 45. Calm wind.
Thursday
A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 60. Light and variable wind becoming north 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 24. North wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 20 mph.
Friday
Mostly sunny, with a high near 43. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.
Friday Night
Mostly clear, with a low around 22. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 52. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 34. Southwest wind around 5 mph becoming light and variable.
Sunday
Mostly sunny, with a high near 64. South wind 5 to 9 mph.
Sunday Night
Mostly clear, with a low around 43. South wind around 6 mph.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 71. Southeast wind 5 to 7 mph.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 44. East wind 6 to 8 mph.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 67. Southeast wind 8 to 11 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
Last Update:
3:11 am CDT Mar 25, 2026
Forecast Valid:
5am CDT Mar 25, 2026-6pm CDT Mar 31, 2026
 
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Additional Resources

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