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

33°F

1°C

Humidity 97%
Wind Speed Calm
Barometer 30.31 in (1027.2 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 19 Oct 6:55 am CDT
Extended Forecast for

Sparta WI

  • Today

    Today: Increasing clouds, with a high near 67. Calm wind.

    High: 67 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67. Calm wind becoming south around 6 mph in the afternoon.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. South wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. Light southwest wind.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 71. Calm wind.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 69 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 67. Calm wind.
Tonight
Mostly clear, with a low around 37. Calm wind.
Tuesday
Sunny, with a high near 67. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 42. South wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 70. Light southwest wind.
Wednesday Night
Mostly clear, with a low around 47. Calm wind.
Thursday
Sunny, with a high near 71. Calm wind.
Thursday Night
Partly cloudy, with a low around 50. Calm wind.
Friday
Mostly sunny, with a high near 69. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 53. Southeast wind around 6 mph, with gusts as high as 21 mph.
Saturday
Partly sunny, with a high near 70. South wind 6 to 11 mph, with gusts as high as 22 mph.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 51. South wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 21 mph.
Sunday
Mostly sunny, with a high near 66. Calm wind becoming west 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:
6:26 am CDT Oct 19, 2026
Forecast Valid:
7am CDT Oct 19, 2026-6pm CDT Oct 25, 2026
 
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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