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

28°F

-2°C

Humidity 93%
Wind Speed Calm
Barometer 30.15 in (1022.3 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 9 Jan 5:55 pm CST
Extended Forecast for

Norwalk WI

  • Tonight

    Tonight: A 50 percent chance of snow, mainly after 4am. Mostly cloudy, with a low around 24. Light west wind. Total nighttime snow accumulation of less than a half inch possible.

    Low: 24 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: A 50 percent chance of snow. Cloudy, then gradually becoming mostly sunny, with a high near 30. Breezy, with a west wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph. New snow accumulation of less than one inch possible.

    High: 30 °F

    Chance Snow
    and Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 15. Northwest wind 13 to 15 mph, with gusts as high as 26 mph.

    Low: 15 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 28. Northwest wind 6 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph.

    High: 28 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 19. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 19 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 40. West wind 6 to 8 mph.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 29. Southwest wind 6 to 9 mph, with gusts as high as 21 mph.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A 40 percent chance of rain. Mostly cloudy, with a high near 42. West wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 42 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 22. West wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    Low: 22 °F

    Chance
    Rain/Snow
    then Chance
    Snow

Detailed Forecast

Tonight
A 50 percent chance of snow, mainly after 4am. Mostly cloudy, with a low around 24. Light west wind. Total nighttime snow accumulation of less than a half inch possible.
Saturday
A 50 percent chance of snow. Cloudy, then gradually becoming mostly sunny, with a high near 30. Breezy, with a west wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph. New snow accumulation of less than one inch possible.
Saturday Night
Mostly cloudy, with a low around 15. Northwest wind 13 to 15 mph, with gusts as high as 26 mph.
Sunday
Mostly sunny, with a high near 28. Northwest wind 6 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
Partly cloudy, with a low around 19. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 40. West wind 6 to 8 mph.
Monday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 29. Southwest wind 6 to 9 mph, with gusts as high as 21 mph.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 42. West wind 9 to 13 mph, with gusts as high as 22 mph.
Tuesday Night
A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 22. West wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of snow, mainly before noon. Partly sunny, with a high near 27. North wind 8 to 10 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 13. North wind 5 to 7 mph.
Thursday
A 30 percent chance of snow. Mostly sunny, with a high near 27. West wind 5 to 8 mph becoming south in the afternoon.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 19. South wind around 7 mph.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 29. Southwest wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Norwalk WI
 43.84°N 90.61°W
Last Update:
4:41 pm CST Jan 9, 2026
Forecast Valid:
6pm CST Jan 9, 2026-6pm CST Jan 16, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation