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

78°F

26°C

Humidity 56%
Wind Speed S 12 mph
Barometer 30.05 in (1017.7 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 25 Aug 11:55 am CDT
Extended Forecast for

Norwalk WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 81. Southwest wind around 11 mph, with gusts as high as 20 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 63. South wind 5 to 9 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 82. Light west wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 22 mph.

    High: 82 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82. Light and variable wind.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. Light south wind.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers. Partly sunny, with a high near 80. South wind 5 to 11 mph, with gusts as high as 22 mph.

    High: 80 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 81. Southwest wind around 11 mph, with gusts as high as 20 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 63. South wind 5 to 9 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 82. Light west wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 59. Northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 82. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 56. Calm wind.
Friday
Sunny, with a high near 82. Light and variable wind.
Friday Night
Partly cloudy, with a low around 59. Light south wind.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 80. South wind 5 to 11 mph, with gusts as high as 22 mph.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. South wind 9 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. South wind around 11 mph, with gusts as high as 24 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind around 6 mph.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. South wind 6 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Norwalk WI
 43.84°N 90.64°W
Last Update:
12:21 pm CDT Aug 25, 2026
Forecast Valid:
12pm CDT Aug 25, 2026-6pm CDT Aug 31, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation