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

38°F

3°C

Humidity 87%
Wind Speed Calm
Barometer 30.06 in (1019.1 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 18 Nov 3:55 pm CST
Extended Forecast for

5 Miles NNW Wilton WI

  • Tonight

    Tonight: Patchy fog between 3am and 4am. Otherwise, mostly cloudy, with a low around 26. East wind around 6 mph becoming calm in the evening.

    Low: 26 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 41. Calm wind becoming south around 5 mph in the afternoon.

    High: 41 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34. Calm wind becoming south around 6 mph after midnight.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 50. South wind 6 to 8 mph becoming west in the afternoon.

    High: 50 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26. Northwest wind 3 to 6 mph.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 45. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 45 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24. Light and variable wind.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 48. South wind 3 to 8 mph.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28. West wind around 6 mph.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog between 3am and 4am. Otherwise, mostly cloudy, with a low around 26. East wind around 6 mph becoming calm in the evening.
Wednesday
Mostly cloudy, with a high near 41. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 34. Calm wind becoming south around 6 mph after midnight.
Thursday
Partly sunny, with a high near 50. South wind 6 to 8 mph becoming west in the afternoon.
Thursday Night
Partly cloudy, with a low around 26. Northwest wind 3 to 6 mph.
Friday
Sunny, with a high near 45. Northwest wind around 5 mph becoming calm in the afternoon.
Friday Night
Mostly clear, with a low around 24. Light and variable wind.
Saturday
Mostly sunny, with a high near 48. South wind 3 to 8 mph.
Saturday Night
Partly cloudy, with a low around 28. West wind around 6 mph.
Sunday
Mostly sunny, with a high near 49. West wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 31. Southwest wind around 6 mph.
Monday
Sunny, with a high near 50. West wind 6 to 8 mph.
Monday Night
A 20 percent chance of rain. Partly cloudy, with a low around 30. West wind around 7 mph becoming southeast after midnight.
Tuesday
A 30 percent chance of rain. Partly sunny, with a high near 47. Southeast wind 7 to 9 mph becoming south in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Wilton WI
 43.88°N 90.55°W
Last Update:
4:06 pm CST Nov 18, 2025
Forecast Valid:
4pm CST Nov 18, 2025-6pm CST Nov 25, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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