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

35°F

2°C

Humidity 67%
Wind Speed Calm
Barometer 30.11 in (1020.7 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 12 Nov 10:55 pm CST
Extended Forecast for

Tomah WI

  • Tonight

    Tonight: Mostly cloudy, with a low around 24. North wind around 6 mph.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 41. North wind 5 to 10 mph becoming light in the afternoon. Winds could gust as high as 18 mph.

    High: 41 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 45. Calm wind.

    High: 45 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 23. Calm wind.

    Low: 23 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 48. Calm wind.

    High: 48 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 24. Calm wind.

    Low: 24 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 52. Calm wind becoming southwest around 6 mph.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 27. Light southwest wind.

    Low: 27 °F

    Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 24. North wind around 6 mph.
Friday
Partly sunny, with a high near 41. North wind 5 to 10 mph becoming light in the afternoon. Winds could gust as high as 18 mph.
Friday Night
Partly cloudy, with a low around 21. Calm wind.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 45. Calm wind.
Saturday Night
Clear, with a low around 23. Calm wind.
Sunday
Sunny, with a high near 48. Calm wind.
Sunday Night
Clear, with a low around 24. Calm wind.
Monday
Sunny, with a high near 52. Calm wind becoming southwest around 6 mph.
Monday Night
Clear, with a low around 27. Light southwest wind.
Tuesday
Sunny, with a high near 55. South wind 3 to 8 mph.
Tuesday Night
Mostly clear, with a low around 34. South wind around 5 mph, with gusts as high as 18 mph.
Wednesday
Mostly sunny, with a high near 57. South wind 5 to 9 mph, with gusts as high as 21 mph.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 40. South wind 3 to 5 mph. Winds could gust as high as 18 mph.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 58. Southwest wind 5 to 9 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tomah WI
 43.99°N 90.51°W
Last Update:
3:56 pm CST Nov 12, 2026
Forecast Valid:
11pm CST Nov 12, 2026-6pm CST Nov 19, 2026
 
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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