Hazardous Weather Conditions
Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
A Few Clouds
88°F
31°C
| Humidity | 68% |
| Wind Speed | S 3 mph |
| Barometer | 29.85 in (1010.6 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 99°F (37°C) |
| Last update | 26 Jul 12:55 pm CDT |
Extended Forecast for
4 Miles SSW Sparta WI
Extreme Heat Warning July 26, 01:52pm until July 27, 09:00pm
NOW until 9:00pm Mon

Extreme Heat Warning
This Afternoon

High: 93 °F
Partly Sunny
Tonight
Low: 72 °F
Slight Chance
T-storms then
Chance
T-stormsMonday
High: 94 °F
Chance
T-storms then
Areas SmokeMonday Night

Low: 65 °F
Partly Cloudy
Tuesday

High: 87 °F
Mostly Sunny
Tuesday Night

Low: 63 °F
Mostly Clear
Wednesday

High: 89 °F
Sunny
Wednesday Night

Low: 65 °F
Mostly Clear
Detailed Forecast
This Afternoon
Partly sunny, with a high near 93. Heat index values as high as 107. Southwest wind around 6 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 3am. Partly cloudy, with a low around 72. Light and variable wind becoming south around 6 mph in the evening. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Areas of smoke after 5pm. Mostly sunny, with a high near 94. Heat index values as high as 105. Light and variable wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 65. Northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Tuesday
Mostly sunny, with a high near 87. Calm wind.
Tuesday Night
Mostly clear, with a low around 63. Calm wind.
Wednesday
Sunny, with a high near 89. Calm wind.
Wednesday Night
Mostly clear, with a low around 65. Calm wind.
Thursday
Mostly sunny, with a high near 86. Light southwest wind.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66. Calm wind.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. Light and variable wind.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. Calm wind.
Saturday
Mostly sunny, with a high near 86. Light north wind.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles SSW Sparta WI
43.89°N 90.82°W
43.89°N 90.82°W
1:26 pm CDT Jul 26, 2026
1pm CDT Jul 26, 2026-6pm CDT Aug 1, 2026



