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.

Partly Cloudy

76°F

24°C

Humidity 62%
Wind Speed Calm
Barometer 29.89 in (1012.0 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 12 Jul 7:55 pm CDT
Extended Forecast for

Sparta WI

  • Tonight

    Tonight: Areas of smoke after 3am. Patchy fog after 5am. Otherwise, mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Areas of smoke before 4pm. Patchy fog before 7am. Otherwise, sunny, with a high near 85. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 85 °F

    Patchy Fog
    then Areas
    Smoke

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66. Southwest wind around 6 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming south 5 to 8 mph in the morning.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. South wind 3 to 7 mph. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northeast wind 3 to 6 mph.

    Low: 61 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Areas of smoke after 3am. Patchy fog after 5am. Otherwise, mostly clear, with a low around 57. Calm wind.
Sunday
Areas of smoke before 4pm. Patchy fog before 7am. Otherwise, sunny, with a high near 85. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 66. Southwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 69. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming south 5 to 8 mph in the morning.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. South wind 3 to 7 mph. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northeast wind 3 to 6 mph.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77. Northeast wind 5 to 7 mph.
Thursday Night
Mostly cloudy, with a low around 57. Light northeast wind.
Friday
Partly sunny, with a high near 77. Light northeast wind.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 59. Light and variable wind.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.95°N 90.81°W
Last Update:
7:59 pm CDT Jul 12, 2025
Forecast Valid:
8pm CDT Jul 12, 2025-6pm CDT Jul 19, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation