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

59°F

15°C

Humidity 67%
Wind Speed W 14 mph
Barometer 30.00 in (1016.1 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 19 May 2:55 pm CDT
Extended Forecast for

Norwalk WI

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 40. Northwest wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 24 mph.

    Low: 40 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 63. North wind around 6 mph becoming calm in the afternoon.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. Calm wind becoming east around 5 mph after midnight.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 62. East wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 62 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 42. East wind 6 to 8 mph, with gusts as high as 18 mph.

    Low: 42 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 62. East wind 8 to 13 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 45. East wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    Low: 45 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 69. East wind around 5 mph becoming northwest in the afternoon.

    High: 69 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 40. Northwest wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 24 mph.
Wednesday
Sunny, with a high near 63. North wind around 6 mph becoming calm in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 41. Calm wind becoming east around 5 mph after midnight.
Thursday
Partly sunny, with a high near 62. East wind 7 to 10 mph, with gusts as high as 18 mph.
Thursday Night
Mostly cloudy, with a low around 42. East wind 6 to 8 mph, with gusts as high as 18 mph.
Friday
A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 62. East wind 8 to 13 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 45. East wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Saturday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 69. East wind around 5 mph becoming northwest in the afternoon.
Saturday Night
Mostly cloudy, with a low around 49. Calm wind.
Sunday
Mostly sunny, with a high near 75. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 52. Calm wind.
Memorial Day
Sunny, with a high near 83. Calm wind becoming south 5 to 7 mph in the morning.
Monday Night
Partly cloudy, with a low around 57. South wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 82. Southeast wind 3 to 8 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:
2:31 pm CDT May 19, 2026
Forecast Valid:
3pm CDT May 19, 2026-6pm CDT May 26, 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