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

54°F

12°C

Humidity 32%
Wind Speed W 15 G 22 mph
Barometer 30.12 in (1020.8 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 5 Apr 2:55 pm CDT
Extended Forecast for

Sparta WI

  • Tonight

    Tonight: A 50 percent chance of showers before 9pm. Mostly cloudy, with a low around 31. Northwest wind 8 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 43. Breezy, with a northwest wind 10 to 16 mph.

    High: 43 °F

    Mostly Cloudy
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 16. Northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 20 mph.

    Low: 16 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 44. Calm wind becoming south around 5 mph in the afternoon.

    High: 44 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Rain and snow showers likely, becoming all rain after 4am. Mostly cloudy, with a low around 31. Southeast wind 5 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 64. Breezy, with a south wind 10 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Chance
    Showers then
    Showers
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 41. Southwest wind 7 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    Low: 41 °F

    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 58. West wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 58 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers. Partly cloudy, with a low around 31. Northwest wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 50 percent chance of showers before 9pm. Mostly cloudy, with a low around 31. Northwest wind 8 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Partly sunny, with a high near 43. Breezy, with a northwest wind 10 to 16 mph.
Monday Night
Mostly clear, with a low around 16. Northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 44. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Rain and snow showers likely, becoming all rain after 4am. Mostly cloudy, with a low around 31. Southeast wind 5 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 64. Breezy, with a south wind 10 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 41. Southwest wind 7 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Thursday
A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 58. West wind 6 to 10 mph, with gusts as high as 18 mph.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 31. Northwest wind around 5 mph becoming calm in the evening.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 58. Light north wind.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 35. Light and variable wind.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 60. Southeast wind 3 to 8 mph.
Saturday Night
Showers likely. Mostly cloudy, with a low around 46. Southeast wind around 7 mph. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. South wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
Last Update:
1:26 pm CDT Apr 5, 2026
Forecast Valid:
4pm CDT Apr 5, 2026-6pm CDT Apr 12, 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