National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Overcast

75°F

24°C

Humidity 74%
Wind Speed Calm
Barometer 30.05 in (1017.6 mb)
Dewpoint 66°F (19°C)
Visibility 9.00 mi
Last update 15 Jun 2:55 pm CDT
Extended Forecast for

Sparta WI

  • This Afternoon

    This Afternoon: A 20 percent chance of showers after 4pm. Partly sunny, with a high near 77. Southeast wind 3 to 5 mph.

    High: 77 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61. Light southeast wind.

    Low: 61 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 82. West wind 3 to 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 58. North wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Chance
    T-storms

  • Juneteenth

    Juneteenth: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 80. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers after 4pm. Partly sunny, with a high near 77. Southeast wind 3 to 5 mph.
Tonight
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61. Light southeast wind.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 82. West wind 3 to 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 58. North wind around 5 mph becoming calm in the evening.
Juneteenth
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 80. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 60. Calm wind.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South wind around 8 mph, with gusts as high as 21 mph.
Saturday
Mostly sunny, with a high near 89. Southwest wind 7 to 9 mph, with gusts as high as 20 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 72. South wind around 6 mph.
Sunday
Mostly sunny, with a high near 89. South wind 7 to 14 mph, with gusts as high as 23 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
Last Update:
2:58 pm CDT Jun 15, 2025
Forecast Valid:
3pm CDT Jun 15, 2025-6pm CDT Jun 22, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation