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

32°F

0°C

Humidity 87%
Wind Speed Calm
Barometer 29.93 in (1014.9 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 15 Feb 8:55 am CST
Extended Forecast for

Norwalk WI

  • Today

    Today: Sunny, with a high near 55. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 55 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 37. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 21 mph.

    Low: 37 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 58. Southwest wind 5 to 10 mph becoming light and variable in the afternoon. Winds could gust as high as 22 mph.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. Calm wind becoming east 5 to 7 mph after midnight.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 50. Breezy, with an east wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 50 °F

    Partly Sunny
    then Slight
    Chance Rain
    and Breezy

  • Tuesday Night

    Tuesday Night: Rain likely, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 41. Breezy, with an east wind 10 to 20 mph becoming south after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain Likely
    and Breezy

  • Wednesday

    Wednesday: A 50 percent chance of rain. Mostly sunny, with a high near 52. Breezy, with a south wind 10 to 18 mph becoming west in the afternoon. Winds could gust as high as 28 mph.

    High: 52 °F

    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before midnight, then a slight chance of snow. Partly cloudy, with a low around 28. West wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 28 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Thursday

    Thursday: A chance of rain and snow after noon. Mostly sunny, with a high near 43. West wind 6 to 11 mph becoming north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    High: 43 °F

    Mostly Sunny
    then Chance
    Rain/Snow

Detailed Forecast

Today
Sunny, with a high near 55. Northwest wind around 5 mph becoming calm in the afternoon.
Tonight
Partly cloudy, with a low around 37. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 21 mph.
Washington's Birthday
Mostly sunny, with a high near 58. Southwest wind 5 to 10 mph becoming light and variable in the afternoon. Winds could gust as high as 22 mph.
Monday Night
Partly cloudy, with a low around 34. Calm wind becoming east 5 to 7 mph after midnight.
Tuesday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 50. Breezy, with an east wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.
Tuesday Night
Rain likely, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 41. Breezy, with an east wind 10 to 20 mph becoming south after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A 50 percent chance of rain. Mostly sunny, with a high near 52. Breezy, with a south wind 10 to 18 mph becoming west in the afternoon. Winds could gust as high as 28 mph.
Wednesday Night
A chance of rain and snow before midnight, then a slight chance of snow. Partly cloudy, with a low around 28. West wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Thursday
A chance of rain and snow after noon. Mostly sunny, with a high near 43. West wind 6 to 11 mph becoming north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Thursday Night
A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 23. North wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 32. Northwest wind around 11 mph, with gusts as high as 21 mph.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 15. Northwest wind 6 to 9 mph, with gusts as high as 18 mph.
Saturday
Mostly sunny, with a high near 29. Northwest wind 6 to 9 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:
9:16 am CST Feb 15, 2026
Forecast Valid:
9am CST Feb 15, 2026-6pm CST Feb 21, 2026
 
Forecast Discussion
 
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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