Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
Fair
55°F
13°C
| Humidity | 92% |
| Wind Speed | Calm |
| Barometer | 29.98 in (1015.4 mb) |
| Dewpoint | 53°F (12°C) |
| Visibility | 10.00 mi |
| Last update | 25 May 12:55 am CDT |
Extended Forecast for
Sparta WI
Overnight

Low: 58 °F
Increasing
CloudsMemorial Day
High: 84 °F
Chance
Showers then
Mostly SunnyMonday Night

Low: 62 °F
Mostly Clear
Tuesday

High: 91 °F
Mostly Sunny
Tuesday Night

Low: 61 °F
Partly Cloudy
Wednesday
High: 91 °F
Mostly Sunny
then Chance
T-stormsWednesday Night

Low: 57 °F
Mostly Clear
Thursday

High: 86 °F
Sunny
Thursday Night

Low: 56 °F
Partly Cloudy
Detailed Forecast
Overnight
Increasing clouds, with a low around 58. Light south wind.
Memorial Day
A 40 percent chance of showers, mainly before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 84. South wind 5 to 14 mph, with gusts as high as 24 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 62. Southwest wind 5 to 8 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 91. Southwest wind 3 to 5 mph.
Tuesday Night
Partly cloudy, with a low around 61. Calm wind.
Wednesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 57. Calm wind becoming east around 5 mph after midnight.
Thursday
Sunny, with a high near 86. Light east wind.
Thursday Night
Partly cloudy, with a low around 56. Calm wind.
Friday
Mostly sunny, with a high near 86. Light east wind.
Friday Night
Partly cloudy, with a low around 55. Calm wind.
Saturday
Mostly sunny, with a high near 82. Calm wind becoming east 5 to 7 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 53. East wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Sparta WI
43.95°N 90.81°W
43.95°N 90.81°W
12:56 am CDT May 25, 2026
1am CDT May 25, 2026-6pm CDT May 31, 2026


