National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

64°F

18°C

Humidity 45%
Wind Speed Calm
Barometer 30.14 in (1021.3 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 7 Oct 5:55 pm CDT
Extended Forecast for

Tunnel City WI

Frost Advisory October 8, 03:00am until October 8, 09:00am
Click here for hazard details and duration
Frost Advisory

  • This Afternoon

    This Afternoon: A slight chance of sprinkles. Mostly sunny, with a steady temperature around 62. Northwest wind around 9 mph.

    High: 62 °F

    Slight Chance
    Sprinkles

  • Tonight

    Tonight: A slight chance of sprinkles before 9pm. Widespread frost, mainly after 4am. Otherwise, clear, with a low around 31. Northwest wind 5 to 7 mph becoming light and variable.

    Low: 31 °F

    Slight Chance
    Sprinkles
    then Frost

  • Wednesday

    Wednesday: Widespread frost before 9am. Otherwise, sunny, with a high near 59. East wind 3 to 5 mph.

    High: 59 °F

    Frost then
    Sunny

  • Wednesday Night

    Wednesday Night: Areas of frost after 2am. Otherwise, clear, with a low around 34. Calm wind.

    Low: 34 °F

    Clear then
    Areas Frost

  • Thursday

    Thursday: Areas of frost before 8am. Otherwise, sunny, with a high near 64. South wind 3 to 8 mph.

    High: 64 °F

    Areas Frost
    then Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 46. South wind around 6 mph.

    Low: 46 °F

    Slight Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 67. South wind around 7 mph.

    High: 67 °F

    Partly Sunny

  • Friday Night

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

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69. Southeast wind 3 to 8 mph.

    High: 69 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of sprinkles. Mostly sunny, with a steady temperature around 62. Northwest wind around 9 mph.
Tonight
A slight chance of sprinkles before 9pm. Widespread frost, mainly after 4am. Otherwise, clear, with a low around 31. Northwest wind 5 to 7 mph becoming light and variable.
Wednesday
Widespread frost before 9am. Otherwise, sunny, with a high near 59. East wind 3 to 5 mph.
Wednesday Night
Areas of frost after 2am. Otherwise, clear, with a low around 34. Calm wind.
Thursday
Areas of frost before 8am. Otherwise, sunny, with a high near 64. South wind 3 to 8 mph.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 46. South wind around 6 mph.
Friday
Partly sunny, with a high near 67. South wind around 7 mph.
Friday Night
Partly cloudy, with a low around 44. Calm wind.
Saturday
Mostly sunny, with a high near 69. Southeast wind 3 to 8 mph.
Saturday Night
Partly cloudy, with a low around 51. Southeast wind 6 to 8 mph, with gusts as high as 18 mph.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 70. South wind 8 to 13 mph, with gusts as high as 23 mph.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 54. Southeast wind around 9 mph, with gusts as high as 22 mph.
Columbus Day
A 30 percent chance of showers. Partly sunny, with a high near 69. South wind around 8 mph, with gusts as high as 18 mph.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 52. South wind around 5 mph.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 69. Southeast wind 5 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tunnel City WI
 44.01°N 90.57°W
Last Update:
4:51 pm CDT Oct 7, 2025
Forecast Valid:
5pm CDT Oct 7, 2025-6pm CDT Oct 14, 2025
 
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