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 91%
Wind Speed Calm
Barometer 30.22 in (1024.8 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 14 Nov 1:55 am CST
Extended Forecast for

Tomah WI

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 24. Calm wind.

    Low: 24 °F

    Mostly 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 21. Calm wind.

    Low: 21 °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 22. Calm wind.

    Low: 22 °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 30. Southwest wind around 6 mph, with gusts as high as 18 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 57. South wind 5 to 10 mph, with gusts as high as 22 mph.

    High: 57 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35. South wind around 7 mph, with gusts as high as 22 mph.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 24. Calm wind.
Saturday
Sunny, with a high near 46. Calm wind.
Saturday Night
Mostly clear, with a low around 21. Calm wind.
Sunday
Sunny, with a high near 50. Calm wind.
Sunday Night
Clear, with a low around 22. 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 30. Southwest wind around 6 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 57. South wind 5 to 10 mph, with gusts as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 35. South wind around 7 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 58. South wind 7 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly cloudy, with a low around 43. South wind around 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 6 to 11 mph, with gusts as high as 22 mph.
Thursday Night
A 20 percent chance of rain. Partly cloudy, with a low around 40. Light west wind.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 59. Calm wind becoming south around 5 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:
12:26 am CST Nov 14, 2026
Forecast Valid:
2am CST Nov 14, 2026-6pm CST Nov 20, 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