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

17°F

-8°C

Humidity 92%
Wind Speed Calm
Barometer 30.23 in (1025.1 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 14 Nov 2:55 am CST
Extended Forecast for

Sparta WI

  • Overnight

    Overnight: Clear, with a low around 20. Calm wind.

    Low: 20 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 46. Calm wind.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 20. Calm wind.

    Low: 20 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 50. Calm wind.

    High: 50 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 21. Calm wind.

    Low: 21 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 53. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 18 mph.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29. South wind around 5 mph becoming calm in the evening. Winds could gust as high as 18 mph.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 57. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 23 mph.

    High: 57 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35. South wind 3 to 6 mph. Winds could gust as high as 23 mph.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 20. Calm wind.
Saturday
Sunny, with a high near 46. Calm wind.
Saturday Night
Mostly clear, with a low around 20. Calm wind.
Sunday
Sunny, with a high near 50. Calm wind.
Sunday Night
Clear, with a low around 21. Calm wind.
Monday
Sunny, with a high near 53. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Mostly clear, with a low around 29. South wind around 5 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 57. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around 35. South wind 3 to 6 mph. Winds could gust as high as 23 mph.
Wednesday
Mostly sunny, with a high near 58. South wind 5 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly cloudy, with a low around 44. South wind 5 to 7 mph, with gusts as high as 23 mph.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 60. West wind 5 to 11 mph, with gusts as high as 21 mph.
Thursday Night
A 20 percent chance of rain. Partly cloudy, with a low around 39. Calm wind.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 60. Light and variable wind.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.95°N 90.81°W
Last Update:
2:46 am CST Nov 14, 2026
Forecast Valid:
3am CST Nov 14, 2026-6pm CST Nov 20, 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