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.

Fair

75°F

24°C

Humidity 67%
Wind Speed Calm
Barometer 29.79 in (1008.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 17 Jun 9:55 am CDT
Extended Forecast for

4 Miles SSW Sparta WI

  • Today

    Today: Mostly sunny, with a high near 83. Northwest wind 3 to 6 mph.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 63. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 76. Light and variable wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 58. North wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 84. Calm wind becoming west 5 to 8 mph in the morning.

    High: 84 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 62. Southwest wind around 5 mph becoming calm in the evening. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 86 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South wind around 9 mph, with gusts as high as 22 mph.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 92. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 92 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 83. Northwest wind 3 to 6 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 63. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 76. Light and variable wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 58. North wind around 6 mph becoming calm in the evening.
Juneteenth
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 84. Calm wind becoming west 5 to 8 mph in the morning.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 62. Southwest wind around 5 mph becoming calm in the evening. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. 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 70. South wind around 9 mph, with gusts as high as 22 mph.
Saturday
Mostly sunny, with a high near 92. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 74. South wind around 9 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 73. South wind 9 to 11 mph, with gusts as high as 23 mph.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Sparta WI
 43.89°N 90.82°W
Last Update:
10:13 am CDT Jun 17, 2025
Forecast Valid:
10am CDT Jun 17, 2025-6pm CDT Jun 23, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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