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.

Mostly Cloudy

67°F

19°C

Humidity 81%
Wind Speed Calm
Barometer 29.97 in (1014.6 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 27 May 2:55 am CDT
Extended Forecast for

Wilton WI

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 65. Calm wind.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. Light and variable wind.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 52. East wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 52 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. East wind 6 to 8 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 51. Calm wind.

    Low: 51 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 85. Calm wind becoming east 5 to 8 mph in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52. East wind 5 to 7 mph becoming calm after midnight.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 65. Calm wind.
Wednesday
Mostly sunny, with a high near 88. Light and variable wind.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 52. East wind 5 to 9 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 78. East wind 6 to 8 mph.
Thursday Night
Clear, with a low around 51. Calm wind.
Friday
Sunny, with a high near 86. Calm wind.
Friday Night
Mostly clear, with a low around 57. Calm wind.
Saturday
Mostly sunny, with a high near 85. Calm wind becoming east 5 to 8 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 52. East wind 5 to 7 mph becoming calm after midnight.
Sunday
Sunny, with a high near 81. Light southeast wind.
Sunday Night
Mostly clear, with a low around 54. Calm wind.
Monday
Sunny, with a high near 83. Light northeast wind.
Monday Night
Mostly clear, with a low around 55. Calm wind.
Tuesday
Sunny, with a high near 83. Calm wind becoming southeast around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wilton WI
 43.81°N 90.52°W
Last Update:
3:26 am CDT May 27, 2026
Forecast Valid:
3am CDT May 27, 2026-6pm CDT Jun 2, 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