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

56°F

13°C

Humidity 63%
Wind Speed W 13 G 20 mph
Barometer 30.07 in (1018.6 mb)
Dewpoint 44°F (7°C)
Visibility 9.00 mi
Last update 19 May 6:55 pm CDT
Extended Forecast for

Norwalk WI

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 40. Northwest wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 23 mph.

    Low: 40 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62. North wind around 6 mph becoming calm in the afternoon.

    High: 62 °F

    Mostly 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 9 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 around 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 9 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 6 to 11 mph becoming light after midnight. Winds could gust as high as 23 mph.
Wednesday
Mostly sunny, with a high near 62. 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 9 mph, with gusts as high as 18 mph.
Thursday Night
Mostly cloudy, with a low around 42. East wind around 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 9 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 53. 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. Light southeast wind.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 82. Southeast wind 3 to 7 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Norwalk WI
 43.82°N 90.64°W
Last Update:
5:41 pm CDT May 19, 2026
Forecast Valid:
7pm CDT May 19, 2026-6pm CDT May 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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