Hazardous Weather Conditions
Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
Overcast
51°F
11°C
| Humidity | 71% |
| Wind Speed | SE 8 mph |
| Barometer | 30.05 in (1018.4 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 48°F (9°C) |
| Last update | 11 Apr 8:55 pm CDT |
Extended Forecast for
Tomah WI
Tonight

Low: 47 °F⇑
Showers
LikelySunday
High: 72 °F
Breezy.
Showers
Likely then
Chance
T-stormsSunday Night
Low: 57 °F
Chance
T-storms and
Breezy then
Chance
ShowersMonday
High: 77 °F
Partly Sunny
then Chance
ShowersMonday Night

Low: 57 °F
Showers
LikelyTuesday
High: 78 °F
Mostly Sunny
then Showers
LikelyTuesday Night

Low: 52 °F
Showers
Wednesday

High: 73 °F
Chance
ShowersWednesday Night

Low: 48 °F
Chance
Showers
Detailed Forecast
Tonight
A chance of showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a temperature rising to around 52 by 5am. Southeast wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 1pm, then a chance of showers after 1pm. Mostly cloudy, with a high near 72. Breezy, with a southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 57. Breezy, with a southwest wind 8 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 77. Southwest wind 6 to 8 mph. Chance of precipitation is 30%.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 57. Southwest wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 78. Southwest wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 52. East wind 6 to 8 mph becoming south after midnight. Chance of precipitation is 80%.
Wednesday
A 40 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 73. West wind 7 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
A 30 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 48. West wind around 6 mph becoming light and variable after midnight.
Thursday
A 20 percent chance of showers. Sunny, with a high near 76. Light south wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
A 30 percent chance of showers. Mostly clear, with a low around 52. South wind around 6 mph.
Friday
Showers likely. Partly sunny, with a high near 73. South wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 37. South wind 10 to 13 mph becoming west after midnight. Winds could gust as high as 24 mph.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 54. Northwest wind 10 to 14 mph, with gusts as high as 22 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
6:36 pm CDT Apr 11, 2026
9pm CDT Apr 11, 2026-6pm CDT Apr 18, 2026



