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

74°F

23°C

Humidity 49%
Wind Speed S 14 G 21 mph
Barometer 29.88 in (1011.7 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 10 Oct 10:55 pm CDT
Extended Forecast for

Sparta WI

  • Tonight

    Tonight: Clear, with a low around 61. South wind 5 to 8 mph, with gusts as high as 24 mph.

    Low: 61 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 87. South wind 7 to 10 mph, with gusts as high as 22 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 69. South wind around 5 mph becoming calm in the evening. Winds could gust as high as 18 mph.

    Low: 69 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 86. Southwest wind 3 to 7 mph.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 61. Light and variable wind.

    Low: 61 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Northwest wind 3 to 6 mph.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67. Calm wind becoming north around 5 mph.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 61. South wind 5 to 8 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 87. South wind 7 to 10 mph, with gusts as high as 22 mph.
Sunday Night
Increasing clouds, with a low around 69. South wind around 5 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Columbus Day
Mostly sunny, with a high near 86. Southwest wind 3 to 7 mph.
Monday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 61. Light and variable wind.
Tuesday
Mostly sunny, with a high near 72. Northwest wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 48. Calm wind.
Wednesday
Mostly sunny, with a high near 67. Calm wind becoming north around 5 mph.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 44. Calm wind.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 65. Calm wind becoming southeast 5 to 8 mph in the morning.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 41. Calm wind becoming northwest around 6 mph after midnight. Winds could gust as high as 20 mph.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 57. Breezy, with a northwest wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 32. Northwest wind 6 to 11 mph becoming light in the evening. Winds could gust as high as 24 mph.
Saturday
Sunny, with a high near 55. Calm wind becoming northwest around 6 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.95°N 90.78°W
Last Update:
10:46 pm CDT Oct 10, 2026
Forecast Valid:
11pm CDT Oct 10, 2026-6pm CDT Oct 17, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation