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

16°F

-9°C

Humidity 89%
Wind Speed Calm
Barometer 29.75 in (1009.0 mb)
Dewpoint 13°F (-11°C)
Visibility 8.00 mi
Last update 27 Feb 7:55 am CST
Extended Forecast for

Norwalk WI

  • Today

    Today: Mostly sunny, with a high near 48. Breezy, with a south wind 7 to 16 mph becoming west in the afternoon. Winds could gust as high as 29 mph.

    High: 48 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 15. Blustery, with a northwest wind 8 to 16 mph, with gusts as high as 28 mph.

    Low: 15 °F

    Mostly Clear
    and Blustery
    then Partly
    Cloudy

  • Saturday

    Saturday: Snow likely, mainly between 9am and 4pm. Mostly cloudy, with a high near 23. North wind around 8 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 23 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around 4. North wind 3 to 6 mph.

    Low: 4 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 26. Light and variable wind becoming northeast around 5 mph.

    High: 26 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 14. Calm wind becoming southeast around 5 mph after midnight.

    Low: 14 °F

    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 37. South wind 5 to 8 mph.

    High: 37 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 23. South wind around 6 mph.

    Low: 23 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly before noon. Partly sunny, with a high near 39. Southeast wind around 6 mph becoming light and variable in the afternoon.

    High: 39 °F

    Chance Snow

Detailed Forecast

Today
Mostly sunny, with a high near 48. Breezy, with a south wind 7 to 16 mph becoming west in the afternoon. Winds could gust as high as 29 mph.
Tonight
Increasing clouds, with a low around 15. Blustery, with a northwest wind 8 to 16 mph, with gusts as high as 28 mph.
Saturday
Snow likely, mainly between 9am and 4pm. Mostly cloudy, with a high near 23. North wind around 8 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 4. North wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 26. Light and variable wind becoming northeast around 5 mph.
Sunday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 14. Calm wind becoming southeast around 5 mph after midnight.
Monday
Partly sunny, with a high near 37. South wind 5 to 8 mph.
Monday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 23. South wind around 6 mph.
Tuesday
A 30 percent chance of snow, mainly before noon. Partly sunny, with a high near 39. Southeast wind around 6 mph becoming light and variable in the afternoon.
Tuesday Night
Partly cloudy, with a low around 23. Light and variable wind.
Wednesday
A 30 percent chance of rain. Sunny, with a high near 45. Southeast wind 3 to 7 mph.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 31. Southeast wind around 8 mph.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 46. East wind 7 to 9 mph, with gusts as high as 18 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Norwalk WI
 43.82°N 90.64°W
Last Update:
7:16 am CST Feb 27, 2026
Forecast Valid:
8am CST Feb 27, 2026-6pm CST Mar 5, 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