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.

Overcast

14°F

-10°C

Humidity 54%
Wind Speed S 14 G 22 mph
Barometer 29.99 in (1017.7 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill-1°F (-18°C)
Last update 4 Dec 10:55 pm CST
Extended Forecast for

4 Miles SW Norwalk WI

  • Tonight

    Tonight: Cloudy, with a temperature rising to around 13 by 4am. Wind chill values as low as -7. Breezy, with a south wind 10 to 16 mph, with gusts as high as 33 mph.

    Low: 10 °F⇑

    Cloudy and
    Breezy

  • Friday

    Friday: A chance of flurries before 11am, then snow likely, mainly between 11am and 5pm. Cloudy, with a high near 27. Wind chill values as low as zero. Southwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 27 °F

    Slight Chance
    Snow then
    Snow Likely

  • Friday Night

    Friday Night: A chance of snow and freezing rain before 9pm, then a slight chance of freezing rain between 9pm and midnight. Mostly cloudy, with a low around 12. Southwest wind 7 to 13 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 12 °F

    Chance Wintry
    Mix then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 20. Northwest wind around 6 mph becoming calm in the afternoon.

    High: 20 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 7. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 7 °F

    Snow Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 16. North wind around 6 mph.

    High: 16 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -6. Light and variable wind.

    Low: -6 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 20. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 20 °F

    Partly Sunny
    then Chance
    Snow

  • Monday Night

    Monday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 12. South wind around 10 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%.

    Low: 12 °F

    Snow Likely

Detailed Forecast

Tonight
Cloudy, with a temperature rising to around 13 by 4am. Wind chill values as low as -7. Breezy, with a south wind 10 to 16 mph, with gusts as high as 33 mph.
Friday
A chance of flurries before 11am, then snow likely, mainly between 11am and 5pm. Cloudy, with a high near 27. Wind chill values as low as zero. Southwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
A chance of snow and freezing rain before 9pm, then a slight chance of freezing rain between 9pm and midnight. Mostly cloudy, with a low around 12. Southwest wind 7 to 13 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Saturday
Partly sunny, with a high near 20. Northwest wind around 6 mph becoming calm in the afternoon.
Saturday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 7. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Sunday
Mostly sunny, with a high near 16. North wind around 6 mph.
Sunday Night
Partly cloudy, with a low around -6. Light and variable wind.
Monday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 20. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 12. South wind around 10 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%.
Tuesday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 27. West wind 6 to 9 mph, with gusts as high as 18 mph.
Tuesday Night
Snow. Low around 15. Southwest wind 6 to 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Wednesday
A 40 percent chance of snow. Mostly cloudy, with a high near 26. Northwest wind around 11 mph, with gusts as high as 21 mph.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 3. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.
Thursday
A 20 percent chance of snow. Partly sunny, with a high near 20. Northwest wind around 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Norwalk WI
 43.8°N 90.7°W
Last Update:
11:06 pm CST Dec 4, 2025
Forecast Valid:
11pm CST Dec 4, 2025-6pm CST Dec 11, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation