Hazardous Weather Conditions
Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
Mostly Cloudy
70°F
21°C
| Humidity | 97% |
| Wind Speed | Calm |
| Barometer | 29.87 in (1011.3 mb) |
| Dewpoint | 69°F (21°C) |
| Visibility | 7.00 mi |
| Last update | 26 Jul 6:55 am CDT |
Extended Forecast for
3 Miles SSW Tomah WI
Extreme Heat Warning July 26, 12:00pm until July 26, 09:00pm
Today

High: 93 °F
Partly Sunny
Tonight
Low: 73 °F
Chance
T-storms then
Showers
LikelyMonday
High: 93 °F
Chance
Showers then
SunnyMonday Night

Low: 65 °F
Partly Cloudy
Tuesday

High: 87 °F
Sunny
Tuesday Night

Low: 62 °F
Mostly Clear
Wednesday

High: 88 °F
Sunny
Wednesday Night

Low: 63 °F
Mostly Clear
Thursday
High: 88 °F
Mostly Sunny
then Chance
Showers
Detailed Forecast
Today
Partly sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tonight
A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly sunny, with a high near 93. Heat index values as high as 103. South wind 5 to 11 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Partly cloudy, with a low around 65. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 62. Calm wind.
Wednesday
Sunny, with a high near 88. Calm wind.
Wednesday Night
Mostly clear, with a low around 63. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. Light and variable wind.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64. Calm wind.
Saturday
Mostly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles SSW Tomah WI
43.94°N 90.54°W
43.94°N 90.54°W
4:46 am CDT Jul 26, 2026
7am CDT Jul 26, 2026-6pm CDT Aug 1, 2026



