Hazardous Weather Conditions
Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
Fair
91°F
33°C
| Humidity | 61% |
| Wind Speed | Calm |
| Barometer | 29.83 in (1009.9 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 103°F (39°C) |
| Last update | 26 Jul 2:55 pm CDT |
Extended Forecast for
Sparta WI
Extreme Heat Warning July 26, 03:35pm until July 27, 09:00pm
NOW until 9:00pm Mon
Extreme Heat Warning
Tonight
Low: 71 °F
Slight Chance
T-storms then
Chance
T-stormsMonday
High: 94 °F
Slight Chance
T-stormsMonday Night
Low: 65 °F
Partly Cloudy
Tuesday
High: 87 °F
Mostly Sunny
Tuesday Night
Low: 62 °F
Mostly Clear
Wednesday
High: 88 °F
Sunny
Wednesday Night
Low: 65 °F
Mostly Clear
Thursday
High: 86 °F
Mostly Sunny
Detailed Forecast
Tonight
A 50 percent chance of showers and thunderstorms, mainly after midnight. Partly cloudy, with a low around 71. Southwest wind around 6 mph becoming light and variable. New rainfall amounts between a quarter and half of an inch possible.
Monday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 4pm. Areas of smoke after 5pm. Mostly sunny, with a high near 94. Heat index values as high as 106. Light and variable wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 65. Northwest wind 5 to 7 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 62. Calm wind.
Wednesday
Sunny, with a high near 88. 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. Mostly cloudy, 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 61. Calm wind.
Saturday
Mostly sunny, with a high near 86. Light north wind.
Saturday Night
Mostly clear, with a low around 61. Calm wind.
Sunday
Sunny, with a high near 86. Calm wind.
Additional Forecasts and Information
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Point Forecast:
Sparta WI
43.93°N 90.81°W
43.93°N 90.81°W
3:22 pm CDT Jul 26, 2026
3pm CDT Jul 26, 2026-6pm CDT Aug 2, 2026
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