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

51°F

11°C

Humidity 94%
Wind Speed Calm
Barometer 29.76 in (1008.1 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 6 Oct 9:55 pm CDT
Extended Forecast for

Sparta WI

  • Tonight

    Tonight: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. Light northwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46. Light west wind.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56. South wind 3 to 5 mph. Winds could gust as high as 20 mph.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. Breezy, with a south wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 81 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. South wind 5 to 13 mph, with gusts as high as 30 mph.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 50. Calm wind.
Wednesday
Sunny, with a high near 73. Light northwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 46. Light west wind.
Thursday
Mostly sunny, with a high near 67. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 44. Calm wind.
Friday
Mostly sunny, with a high near 71. Calm wind becoming south 5 to 8 mph in the afternoon.
Friday Night
Mostly clear, with a low around 56. South wind 3 to 5 mph. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 81. Breezy, with a south wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Saturday Night
Mostly clear, with a low around 60. South wind 5 to 13 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 79. South wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 54. South wind around 6 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Columbus Day
A 30 percent chance of showers. Partly sunny, with a high near 72. Southeast wind 3 to 8 mph. Winds could gust as high as 18 mph.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50. South wind 3 to 6 mph. Winds could gust as high as 18 mph.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 64. Light and variable wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.95°N 90.81°W
Last Update:
9:07 pm CDT Oct 6, 2026
Forecast Valid:
10pm CDT Oct 6, 2026-6pm CDT Oct 13, 2026
 
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Additional Resources

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