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.

A Few Clouds

60°F

16°C

Humidity 96%
Wind Speed Calm
Barometer 29.66 in (1004.4 mb)
Dewpoint 59°F (15°C)
Visibility 7.00 mi
Last update 15 Apr 2:55 am CDT
Extended Forecast for

5 Miles SSW Sparta WI

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Chance
    T-storms and
    Patchy Fog

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 66. Light north wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Chance
    T-storms and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 49. Light northeast wind.

    Low: 49 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 71. Light and variable wind.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. Calm wind becoming south around 5 mph after midnight.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Showers likely and possibly a thunderstorm, mainly after 4pm. Partly sunny, with a high near 78. South wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Partly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 36. South wind around 10 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%.

    Low: 36 °F

    Showers

  • Saturday

    Saturday: A 40 percent chance of showers. Partly sunny, with a high near 46. Breezy, with a west wind 10 to 17 mph.

    High: 46 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of snow showers before 1am. Partly cloudy, with a low around 28. Breezy, with a west wind 8 to 17 mph, with gusts as high as 28 mph.

    Low: 28 °F

    Slight Chance
    Snow Showers
    and Breezy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 55. Calm wind.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 66. Light north wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 49. Light northeast wind.
Thursday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 71. Light and variable wind.
Thursday Night
Mostly clear, with a low around 53. Calm wind becoming south around 5 mph after midnight.
Friday
Showers likely and possibly a thunderstorm, mainly after 4pm. Partly sunny, with a high near 78. South wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 36. South wind around 10 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 46. Breezy, with a west wind 10 to 17 mph.
Saturday Night
A 20 percent chance of snow showers before 1am. Partly cloudy, with a low around 28. Breezy, with a west wind 8 to 17 mph, with gusts as high as 28 mph.
Sunday
Mostly sunny, with a high near 49. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 28. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 61. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Partly cloudy, with a low around 44. South wind around 9 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 69. West wind 7 to 11 mph, with gusts as high as 20 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Sparta WI
 43.89°N 90.82°W
Last Update:
3:46 am CDT Apr 15, 2026
Forecast Valid:
3am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
 
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