National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fog/Mist

22°F

-6°C

Humidity 94%
Wind Speed Calm
Barometer 30.01 in (1017.9 mb)
Dewpoint 21°F (-6°C)
Visibility 3.00 mi
Last update 2 Feb 12:55 am CST
Extended Forecast for

Tomah WI

  • Overnight

    Overnight: A chance of flurries before 2am. Mostly cloudy, with a low around 10. West wind around 7 mph.

    Low: 10 °F

    Chance
    Flurries

  • Monday

    Monday: Partly sunny, with a high near 24. Wind chill values as low as zero. Northwest wind 5 to 8 mph.

    High: 24 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 3. Northwest wind around 5 mph becoming calm in the evening.

    Low: 3 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 23. Calm wind.

    High: 23 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 0. Calm wind.

    Low: 0 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 23. Light west wind.

    High: 23 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 9. Calm wind.

    Low: 9 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Partly sunny, with a high near 35. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 35 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 22. West wind 7 to 9 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 22 °F

    Slight Chance
    Snow

Detailed Forecast

Overnight
A chance of flurries before 2am. Mostly cloudy, with a low around 10. West wind around 7 mph.
Monday
Partly sunny, with a high near 24. Wind chill values as low as zero. Northwest wind 5 to 8 mph.
Monday Night
Mostly cloudy, with a low around 3. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 23. Calm wind.
Tuesday Night
Partly cloudy, with a low around 0. Calm wind.
Wednesday
Mostly sunny, with a high near 23. Light west wind.
Wednesday Night
Mostly cloudy, with a low around 9. Calm wind.
Thursday
A 20 percent chance of snow after noon. Partly sunny, with a high near 35. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 22. West wind 7 to 9 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Friday
Mostly sunny, with a high near 31. North wind 7 to 10 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 5. North wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 24. Light and variable wind becoming south 5 to 7 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 12. Southeast wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 31. Light and variable wind becoming southwest around 6 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tomah WI
 43.99°N 90.51°W
Last Update:
11:18 pm CST Feb 1, 2026
Forecast Valid:
1am CST Feb 2, 2026-6pm CST Feb 8, 2026
 
Forecast Discussion
 
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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