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.

Fair

66°F

19°C

Humidity 94%
Wind Speed Calm
Barometer 30.02 in (1016.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 6 Aug 8:55 pm CDT
Extended Forecast for

5 Miles N Norwalk WI

  • Tonight

    Tonight: Mostly clear, with a low around 60. Calm wind becoming south around 5 mph after midnight.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 4pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 85. Southwest wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 85 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 58. Southwest wind 5 to 9 mph becoming light west. Winds could gust as high as 18 mph.

    Low: 58 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 83. Calm wind becoming west around 5 mph in the afternoon.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers, with thunderstorms also possible after 10pm. Partly cloudy, with a low around 63. Light south wind. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Light south wind.

    Low: 65 °F

    Partly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 84. Light and variable wind becoming southwest around 5 mph in the afternoon.

    High: 84 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 62. Light and variable wind.

    Low: 62 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 60. Calm wind becoming south around 5 mph after midnight.
Friday
A 20 percent chance of showers and thunderstorms after 4pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 85. Southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 58. Southwest wind 5 to 9 mph becoming light west. Winds could gust as high as 18 mph.
Saturday
Sunny, with a high near 83. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
A chance of showers, with thunderstorms also possible after 10pm. Partly cloudy, with a low around 63. Light south wind. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Light south wind.
Monday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 84. Light and variable wind becoming southwest around 5 mph in the afternoon.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 62. Light and variable wind.
Tuesday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 83. Calm wind.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61. Calm wind.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 59. Light west wind.
Thursday
Mostly sunny, with a high near 80. Calm wind becoming northwest around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Norwalk WI
 43.9°N 90.64°W
Last Update:
9:51 pm CDT Aug 6, 2026
Forecast Valid:
10pm CDT Aug 6, 2026-6pm CDT Aug 13, 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