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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
-13°F
-25°C
| Humidity | 76% |
| Wind Speed | Calm |
| Barometer | 30.29 in (1029.5 mb) |
| Dewpoint | -18°F (-28°C) |
| Visibility | 10.00 mi |
| Last update | 20 Jan 8:55 am CST |
Extended Forecast for
Tomah WI
Today

High: 14 °F
Increasing
CloudsTonight

Low: 7 °F
Snow Likely
Wednesday
High: 23 °F
Partly Sunny
then Chance
SnowWednesday Night

Low: 2 °F
Mostly Cloudy
Thursday

High: 13 °F
Partly Sunny
Thursday Night

Low: -19 °F
Partly Cloudy
Friday

High: -6 °F
Cold
Friday Night

Low: -19 °F
Partly Cloudy
Saturday

High: 0 °F
Cold
Detailed Forecast
Today
Increasing clouds, with a high near 14. Wind chill values as low as -14. West wind 6 to 9 mph.
Tonight
Snow likely, mainly between 10pm and 3am. Cloudy, with a low around 7. Wind chill values as low as zero. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday
A 40 percent chance of snow after noon. Mostly cloudy, with a high near 23. Wind chill values as low as -1. Light west wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly cloudy, with a low around 2. Wind chill values as low as -8. West wind 7 to 10 mph, with gusts as high as 21 mph.
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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Tomah WI
43.99°N 90.51°W
43.99°N 90.51°W
7:42 am CST Jan 20, 2026
9am CST Jan 20, 2026-6pm CST Jan 26, 2026



