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

79°F

26°C

Humidity 46%
Wind Speed Calm
Barometer 30.08 in (1018.8 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 6 Aug 12:55 pm CDT
Extended Forecast for

Norwalk WI

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. South wind around 6 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 60. South wind around 6 mph.

    Low: 60 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 4pm. Areas of fog before 8am. Otherwise, partly sunny, with a high near 84. Southwest wind 6 to 13 mph, with gusts as high as 22 mph.

    High: 84 °F

    Areas Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 58. West wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 58 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 82. Calm wind becoming west around 6 mph in the afternoon.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers, with thunderstorms also possible after 10pm. Partly cloudy, with a low around 61. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm in the evening.

    Low: 64 °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 83. Light and variable wind becoming southwest around 6 mph in the morning.

    High: 83 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 82. South wind around 6 mph.
Tonight
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 60. South wind around 6 mph.
Friday
A 20 percent chance of showers and thunderstorms after 4pm. Areas of fog before 8am. Otherwise, partly sunny, with a high near 84. Southwest wind 6 to 13 mph, with gusts as high as 22 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 58. West wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 82. Calm wind becoming west around 6 mph in the afternoon.
Saturday Night
A chance of showers, with thunderstorms also possible after 10pm. Partly cloudy, with a low around 61. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 85. 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 64. Southwest wind around 5 mph becoming calm in the evening.
Monday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83. Light and variable wind becoming southwest around 6 mph in the morning.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 61. Light and variable wind.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 82. Calm wind.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60. Calm wind.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Norwalk WI
 43.84°N 90.61°W
Last Update:
1:26 pm CDT Aug 6, 2026
Forecast Valid:
1pm CDT Aug 6, 2026-6pm CDT Aug 12, 2026
 
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Additional Resources

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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