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

48°F

9°C

Humidity 96%
Wind Speed Calm
Barometer 30.29 in (1026.5 mb)
Dewpoint 47°F (8°C)
Visibility 9.00 mi
Last update 15 Oct 6:55 am CDT
Extended Forecast for

Tunnel City WI

  • Today

    Today: A 50 percent chance of showers, mainly before 10am. Cloudy, with a high near 53. East wind 5 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Chance
    Showers then
    Cloudy

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Cloudy, with a low around 47. East wind around 6 mph.

    Low: 47 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 65. Southeast wind 7 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 54. Southeast wind 7 to 9 mph, with gusts as high as 22 mph.

    Low: 54 °F

    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 73. South wind 10 to 13 mph, with gusts as high as 24 mph.

    High: 73 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Low around 52. South wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 65. West wind 6 to 10 mph.

    High: 65 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers. Partly cloudy, with a low around 38. West wind around 6 mph.

    Low: 38 °F

    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 57. West wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 57 °F

    Slight Chance
    Showers

Detailed Forecast

Today
A 50 percent chance of showers, mainly before 10am. Cloudy, with a high near 53. East wind 5 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A 20 percent chance of showers after 2am. Cloudy, with a low around 47. East wind around 6 mph.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 65. Southeast wind 7 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 54. Southeast wind 7 to 9 mph, with gusts as high as 22 mph.
Friday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 73. South wind 10 to 13 mph, with gusts as high as 24 mph.
Friday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Low around 52. South wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 65. West wind 6 to 10 mph.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 38. West wind around 6 mph.
Sunday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 57. West wind 7 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 36. Southwest wind 3 to 5 mph.
Monday
Sunny, with a high near 61. Southwest wind 5 to 10 mph, with gusts as high as 18 mph.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 40. South wind around 7 mph becoming west after midnight. Winds could gust as high as 18 mph.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 59. West wind 8 to 14 mph, with gusts as high as 23 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tunnel City WI
 44.01°N 90.54°W
Last Update:
7:06 am CDT Oct 15, 2025
Forecast Valid:
7am CDT Oct 15, 2025-6pm CDT Oct 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation