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Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Mostly Cloudy

65°F

18°C

Humidity 36%
Wind Speed N 8 G 17 mph
Barometer 30.04 in (1017.6 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 13 May 1:55 pm CDT
Extended Forecast for

3 Miles S Tunnel City WI

Frost Advisory May 14, 01:00am until May 14, 07:00am
Click here for hazard details and duration
Frost Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 68. North wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Areas of frost after 2am. Otherwise, clear, with a low around 33. North wind around 6 mph becoming calm in the evening.

    Low: 33 °F

    Clear then
    Areas Frost

  • Thursday

    Thursday: Sunny, with a high near 74. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before midnight, then a chance of showers after 1am. Increasing clouds, with a low around 53. South wind 7 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 83. Southwest wind around 14 mph, with gusts as high as 25 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 54. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    Low: 54 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers. Mostly sunny, with a high near 82. West wind 3 to 7 mph.

    High: 82 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 51. Calm wind becoming east around 6 mph after midnight.

    Low: 51 °F

    Mostly Clear
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. Breezy, with an east wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 68. North wind 11 to 14 mph, with gusts as high as 23 mph.
Tonight
Areas of frost after 2am. Otherwise, clear, with a low around 33. North wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 74. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
Showers and thunderstorms likely before midnight, then a chance of showers after 1am. Increasing clouds, with a low around 53. South wind 7 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 83. Southwest wind around 14 mph, with gusts as high as 25 mph.
Friday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 54. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 82. West wind 3 to 7 mph.
Saturday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 51. Calm wind becoming east around 6 mph after midnight.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. Breezy, with an east wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 61. Breezy, with a southeast wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Monday
Showers and thunderstorms. High near 85. Breezy, with a south wind 18 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Breezy, with a south wind 16 to 21 mph becoming west 10 to 15 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 72. West wind around 11 mph, with gusts as high as 22 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Tunnel City WI
 43.94°N 90.54°W
Last Update:
1:26 pm CDT May 13, 2026
Forecast Valid:
2pm CDT May 13, 2026-6pm CDT May 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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