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.

Fog/Mist

59°F

15°C

Humidity 97%
Wind Speed Calm
Barometer 30.04 in (1017.3 mb)
Dewpoint 58°F (14°C)
Visibility 4.00 mi
Last update 3 Oct 11:55 pm CDT
Extended Forecast for

3 Miles W Tunnel City WI

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 66. South wind 3 to 5 mph.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 90. Breezy, with a south wind 6 to 16 mph, with gusts as high as 29 mph.

    High: 90 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63. South wind 10 to 13 mph, with gusts as high as 28 mph.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Breezy, with a south wind 11 to 17 mph, with gusts as high as 32 mph.

    High: 84 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. South wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers. Partly sunny, with a high near 67. Northwest wind 5 to 7 mph.

    High: 67 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 67. Calm wind becoming northwest 5 to 8 mph in the morning.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 38. Light and variable wind.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 66. South wind 3 to 5 mph.
Saturday
Sunny, with a high near 90. Breezy, with a south wind 6 to 16 mph, with gusts as high as 29 mph.
Saturday Night
Mostly clear, with a low around 63. South wind 10 to 13 mph, with gusts as high as 28 mph.
Sunday
Sunny, with a high near 84. Breezy, with a south wind 11 to 17 mph, with gusts as high as 32 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. South wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 67. Northwest wind 5 to 7 mph.
Monday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 43. Calm wind.
Tuesday
Sunny, with a high near 67. Calm wind becoming northwest 5 to 8 mph in the morning.
Tuesday Night
Mostly clear, with a low around 38. Light and variable wind.
Wednesday
Sunny, with a high near 65. Calm wind becoming southeast around 6 mph in the morning.
Wednesday Night
Mostly clear, with a low around 39. Light southeast wind.
Thursday
Sunny, with a high near 67. South wind 3 to 8 mph.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 47. South wind around 5 mph.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 68. South wind 5 to 7 mph becoming west in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Tunnel City WI
 44.01°N 90.63°W
Last Update:
10:13 pm CDT Oct 3, 2025
Forecast Valid:
12am CDT Oct 4, 2025-6pm CDT Oct 10, 2025
 
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Additional Resources

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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