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Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

5°F

-15°C

Humidity 64%
Wind Speed Calm
Barometer 30.29 in (1029.1 mb)
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Last update 20 Jan 10:55 am CST
Extended Forecast for

Tomah WI

  • Today

    Today: Partly sunny, with a high near 14. Wind chill values as low as -12. Southwest wind 5 to 8 mph.

    High: 14 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of snow between 9pm and 5am, then a chance of flurries after 5am. Cloudy, with a low around 7. Wind chill values as low as zero. Light southwest wind. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 7 °F

    Chance Snow

  • Wednesday

    Wednesday: Snow, mainly after 3pm. High near 23. Wind chill values as low as -1. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 23 °F

    Partly Sunny
    then Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow before 9pm. Mostly cloudy, with a low around 1. Wind chill values as low as -9. West wind 9 to 14 mph, with gusts as high as 29 mph. New snow accumulation of less than a half inch possible.

    Low: 1 °F

    Chance Snow
    then Partly
    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 13. West wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 13 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -19. Northwest wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: -19 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -6. Northwest wind 5 to 9 mph.

    High: -6 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around -19. Light northwest wind.

    Low: -19 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 0. Calm wind becoming northwest around 5 mph.

    High: 0 °F

    Cold

Detailed Forecast

Today
Partly sunny, with a high near 14. Wind chill values as low as -12. Southwest wind 5 to 8 mph.
Tonight
A chance of snow between 9pm and 5am, then a chance of flurries after 5am. Cloudy, with a low around 7. Wind chill values as low as zero. Light southwest wind. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Wednesday
Snow, mainly after 3pm. High near 23. Wind chill values as low as -1. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Wednesday Night
A 40 percent chance of snow before 9pm. Mostly cloudy, with a low around 1. Wind chill values as low as -9. West wind 9 to 14 mph, with gusts as high as 29 mph. New snow accumulation of less than a half inch possible.
Thursday
Partly sunny, with a high near 13. West wind 7 to 11 mph, with gusts as high as 21 mph.
Thursday Night
Partly cloudy, with a low around -19. Northwest wind 7 to 9 mph, with gusts as high as 20 mph.
Friday
Mostly sunny and cold, with a high near -6. Northwest wind 5 to 9 mph.
Friday Night
Partly cloudy, with a low around -19. Light northwest wind.
Saturday
Mostly sunny and cold, with a high near 0. Calm wind becoming northwest around 5 mph.
Saturday Night
Partly cloudy, with a low around -13. Calm wind.
Sunday
Mostly sunny, with a high near 9. Calm wind becoming southwest 5 to 7 mph in the morning.
Sunday Night
Mostly cloudy, with a low around -8. West wind around 5 mph.
Monday
Mostly sunny, with a high near 15. West wind 5 to 7 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:
10:47 am CST Jan 20, 2026
Forecast Valid:
11am CST Jan 20, 2026-6pm CST Jan 26, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation