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.

Overcast

68°F

20°C

Humidity 91%
Wind Speed Calm
Barometer 29.73 in (1006.6 mb)
Dewpoint 66°F (19°C)
Visibility 9.00 mi
Last update 17 Jun 5:55 am CDT
Extended Forecast for

4 Miles SW Norwalk WI

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 82. West wind 3 to 7 mph.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 63. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 76. Northeast wind 5 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 59. North wind around 6 mph becoming light and variable. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 82. West wind 5 to 9 mph.

    High: 82 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. Southwest wind around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 84. South wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 84 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South wind 10 to 14 mph, with gusts as high as 25 mph.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 89. Southwest wind around 14 mph, with gusts as high as 24 mph.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 82. West wind 3 to 7 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 63. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 76. Northeast wind 5 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 59. North wind around 6 mph becoming light and variable. Chance of precipitation is 20%.
Juneteenth
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 82. West wind 5 to 9 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. Southwest wind around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 84. South wind 7 to 11 mph, with gusts as high as 22 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South wind 10 to 14 mph, with gusts as high as 25 mph.
Saturday
Mostly sunny, with a high near 89. Southwest wind around 14 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 74. South wind 10 to 14 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 89. Breezy, with a south wind 14 to 17 mph, with gusts as high as 28 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 73. South wind around 14 mph, with gusts as high as 26 mph.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Southwest wind around 13 mph, with gusts as high as 23 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Norwalk WI
 43.8°N 90.7°W
Last Update:
5:44 am CDT Jun 17, 2025
Forecast Valid:
6am CDT Jun 17, 2025-6pm CDT Jun 23, 2025
 
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