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

37°F

3°C

Humidity 92%
Wind Speed Calm
Barometer 29.67 in (1005.1 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 26 Mar 3:55 am CDT
Extended Forecast for

Sparta WI

  • Today

    Today: A 20 percent chance of showers after 7am. Partly sunny, with a high near 58. Light northeast wind becoming north 10 to 15 mph in the morning.

    High: 58 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 22. North wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 22 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 43. Breezy, with a light and variable wind becoming northwest 12 to 17 mph in the morning. Winds could gust as high as 25 mph.

    High: 43 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 19. Northwest wind 9 to 14 mph becoming light in the evening. Winds could gust as high as 22 mph.

    Low: 19 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 51. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34. South wind 3 to 5 mph.

    Low: 34 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 66. South wind 5 to 9 mph.

    High: 66 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. South wind around 6 mph.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 68. Southwest wind 5 to 7 mph becoming northeast in the afternoon.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers after 7am. Partly sunny, with a high near 58. Light northeast wind becoming north 10 to 15 mph in the morning.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 22. North wind 7 to 13 mph, with gusts as high as 23 mph.
Friday
Mostly sunny, with a high near 43. Breezy, with a light and variable wind becoming northwest 12 to 17 mph in the morning. Winds could gust as high as 25 mph.
Friday Night
Mostly clear, with a low around 19. Northwest wind 9 to 14 mph becoming light in the evening. Winds could gust as high as 22 mph.
Saturday
Mostly sunny, with a high near 51. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 34. South wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 66. South wind 5 to 9 mph.
Sunday Night
Partly cloudy, with a low around 43. South wind around 6 mph.
Monday
Mostly sunny, with a high near 68. Southwest wind 5 to 7 mph becoming northeast in the afternoon.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 40. East wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 61. Southeast wind 9 to 13 mph, with gusts as high as 22 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 42. Southeast wind around 10 mph becoming south after midnight. Winds could gust as high as 21 mph.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 60. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
Last Update:
1:26 am CDT Mar 26, 2026
Forecast Valid:
4am CDT Mar 26, 2026-6pm CDT Apr 1, 2026
 
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Additional Resources

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