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

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

59°F

15°C

Humidity 88%
Wind Speed Calm
Barometer 30.20 in (1023.2 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 29 Sep 8:55 am CDT
Extended Forecast for

Sparta WI

  • Today

    Today: Sunny, with a high near 85. Light south wind.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 83. Light east wind.

    High: 83 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 79. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 79 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. Light southeast wind.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming south around 6 mph in the morning.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 58. Light south wind.

    Low: 58 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 85. Calm wind becoming south 5 to 8 mph in the morning.

    High: 85 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 85. Light south wind.
Tonight
Partly cloudy, with a low around 56. Calm wind.
Tuesday
Partly sunny, with a high near 83. Light east wind.
Tuesday Night
Mostly cloudy, with a low around 55. Calm wind.
Wednesday
Partly sunny, with a high near 79. Calm wind becoming southeast around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 54. Light southeast wind.
Thursday
Sunny, with a high near 82. Calm wind becoming south around 6 mph in the morning.
Thursday Night
Clear, with a low around 58. Light south wind.
Friday
Sunny, with a high near 85. Calm wind becoming south 5 to 8 mph in the morning.
Friday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 62. South wind 3 to 5 mph.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81. South wind 5 to 8 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61. Light south wind.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 79. South wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
Last Update:
9:58 am CDT Sep 29, 2025
Forecast Valid:
10am CDT Sep 29, 2025-6pm CDT Oct 5, 2025
 
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Additional Resources

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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