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

39°F

4°C

Humidity 92%
Wind Speed N 3 mph
Barometer 29.44 in (997.7 mb)
Dewpoint 37°F (3°C)
Visibility 7.00 mi
Last update 9 Jan 1:55 am CST
Extended Forecast for

Norwalk WI

  • Overnight

    Overnight: Rain and snow, mainly before 5am. Steady temperature around 35. Breezy, with a northwest wind around 18 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain/Snow and
    Breezy

  • Friday

    Friday: A 20 percent chance of rain before 7am. Cloudy through mid morning, then gradual clearing, with a high near 37. Breezy, with a northwest wind 11 to 16 mph becoming light in the afternoon. Winds could gust as high as 30 mph.

    High: 37 °F

    Slight Chance
    Rain and
    Breezy then
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Cloudy

  • Saturday

    Saturday: Snow likely, mainly before noon. Mostly cloudy, with a high near 30. Light west wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 30 °F

    Snow Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 15. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.

    Low: 15 °F

    Chance Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 27. Northwest wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 27 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 18. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 18 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 39. West wind around 9 mph, with gusts as high as 18 mph.

    High: 39 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. West wind around 7 mph, with gusts as high as 18 mph.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Rain and snow, mainly before 5am. Steady temperature around 35. Breezy, with a northwest wind around 18 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday
A 20 percent chance of rain before 7am. Cloudy through mid morning, then gradual clearing, with a high near 37. Breezy, with a northwest wind 11 to 16 mph becoming light in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 24. Calm wind.
Saturday
Snow likely, mainly before noon. Mostly cloudy, with a high near 30. Light west wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Saturday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 15. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 27. Northwest wind 6 to 11 mph, with gusts as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 18. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 39. West wind around 9 mph, with gusts as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 29. West wind around 7 mph, with gusts as high as 18 mph.
Tuesday
A slight chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 39. Southwest wind 6 to 8 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 23. North wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Wednesday
A 20 percent chance of snow. Mostly cloudy, with a high near 29. North wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 13. North wind 5 to 8 mph.
Thursday
A 20 percent chance of snow. Partly sunny, with a high near 27. Northwest wind 5 to 7 mph becoming southwest in the afternoon.
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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:
1:36 am CST Jan 9, 2026
Forecast Valid:
2am CST Jan 9, 2026-6pm CST Jan 15, 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