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

13°F

-11°C

Humidity 68%
Wind Speed NW 13 mph
Barometer 30.39 in (1031.1 mb)
Dewpoint 4°F (-16°C)
Visibility 8.00 mi
Wind Chill-2°F (-19°C)
Last update 22 Feb 7:55 am CST
Extended Forecast for

Tomah WI

  • Today

    Today: Scattered flurries before 3pm. Cloudy, with a high near 20. Wind chill values as low as -2. Blustery, with a north wind 14 to 17 mph, with gusts as high as 28 mph.

    High: 20 °F

    Scattered
    Flurries and
    Blustery

  • Tonight

    Tonight: Partly cloudy, with a low around 5. Wind chill values as low as -7. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.

    Low: 5 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 25. Wind chill values as low as -3. Northwest wind around 5 mph becoming calm in the morning.

    High: 25 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 10. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 10 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Snow likely, mainly after noon. Partly sunny, with a high near 35. South wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Snow Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13. West wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: 13 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of snow after noon. Mostly sunny, with a high near 28. Northwest wind 5 to 8 mph.

    High: 28 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 9. Light and variable wind.

    Low: 9 °F

    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow, mainly before noon. Mostly sunny, with a high near 34. Light and variable wind becoming west 5 to 7 mph in the morning.

    High: 34 °F

    Chance Snow

Detailed Forecast

Today
Scattered flurries before 3pm. Cloudy, with a high near 20. Wind chill values as low as -2. Blustery, with a north wind 14 to 17 mph, with gusts as high as 28 mph.
Tonight
Partly cloudy, with a low around 5. Wind chill values as low as -7. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 25. Wind chill values as low as -3. Northwest wind around 5 mph becoming calm in the morning.
Monday Night
Mostly cloudy, with a low around 10. Calm wind becoming south 5 to 7 mph after midnight.
Tuesday
Snow likely, mainly after noon. Partly sunny, with a high near 35. South wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Tuesday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13. West wind 7 to 9 mph, with gusts as high as 20 mph.
Wednesday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 28. Northwest wind 5 to 8 mph.
Wednesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 9. Light and variable wind.
Thursday
A 30 percent chance of snow, mainly before noon. Mostly sunny, with a high near 34. Light and variable wind becoming west 5 to 7 mph in the morning.
Thursday Night
Mostly clear, with a low around 19. Southwest wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 46. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 21. Southwest wind around 8 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Saturday
A 20 percent chance of snow. Partly sunny, with a high near 34. Northwest wind 7 to 11 mph, with gusts as high as 21 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:
8:21 am CST Feb 22, 2026
Forecast Valid:
8am CST Feb 22, 2026-6pm CST Feb 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation