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.

Overcast

53°F

12°C

Humidity 97%
Wind Speed Calm
Barometer 30.07 in (1018.7 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 14 Oct 6:55 am CDT
Extended Forecast for

3 Miles W Tunnel City WI

  • Today

    Today: Partly sunny, with a high near 61. Northeast wind 3 to 6 mph.

    High: 61 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Calm wind becoming east around 5 mph after midnight.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, mainly after 10am. High near 55. Light and variable wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 55 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers likely before 1am. Mostly cloudy, with a low around 39. Breezy, with a light northwest wind increasing to 12 to 17 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 54. Breezy, with a north wind 15 to 20 mph, with gusts as high as 33 mph.

    High: 54 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Widespread frost, mainly after midnight. Otherwise, mostly clear, with a low around 25. Light and variable wind.

    Low: 25 °F

    Frost

  • Saturday

    Saturday: Widespread frost before 9am. Otherwise, sunny, with a high near 60. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

    High: 60 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37. Southwest wind around 8 mph, with gusts as high as 24 mph.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 65. Southwest wind 9 to 15 mph, with gusts as high as 26 mph.

    High: 65 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 61. Northeast wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 43. Calm wind becoming east around 5 mph after midnight.
Thursday
Showers, mainly after 10am. High near 55. Light and variable wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely before 1am. Mostly cloudy, with a low around 39. Breezy, with a light northwest wind increasing to 12 to 17 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Partly sunny, with a high near 54. Breezy, with a north wind 15 to 20 mph, with gusts as high as 33 mph.
Friday Night
Widespread frost, mainly after midnight. Otherwise, mostly clear, with a low around 25. Light and variable wind.
Saturday
Widespread frost before 9am. Otherwise, sunny, with a high near 60. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Saturday Night
Clear, with a low around 37. Southwest wind around 8 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 65. Southwest wind 9 to 15 mph, with gusts as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 43. Southwest wind 3 to 7 mph. Winds could gust as high as 24 mph.
Monday
Mostly sunny, with a high near 67. Light west wind.
Monday Night
Mostly clear, with a low around 40. Calm wind.
Tuesday
Sunny, with a high near 70. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Tunnel City WI
 43.99°N 90.63°W
Last Update:
6:10 am CDT Oct 14, 2026
Forecast Valid:
7am CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
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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