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.

Fog/Mist

50°F

10°C

Humidity 98%
Wind Speed Calm
Barometer 29.91 in (1013.1 mb)
Dewpoint 49°F (9°C)
Visibility 2.00 mi
Last update 20 Jun 12:55 am CDT
Extended Forecast for

3 Miles WNW Norwalk WI

  • Overnight

    Overnight: Clear, with a low around 51. West wind 7 to 9 mph, with gusts as high as 21 mph.

    Low: 51 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 74. Northwest wind 8 to 13 mph.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 73. Calm wind becoming east 5 to 8 mph in the morning.

    High: 73 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52. East wind 3 to 6 mph.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75. Northeast wind 3 to 5 mph.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52. Light and variable wind.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. Calm wind.

    High: 76 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 55. South wind 3 to 5 mph. Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely

Detailed Forecast

Overnight
Clear, with a low around 51. West wind 7 to 9 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 74. Northwest wind 8 to 13 mph.
Saturday Night
Partly cloudy, with a low around 51. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Mostly cloudy, with a high near 73. Calm wind becoming east 5 to 8 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 52. East wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 75. Northeast wind 3 to 5 mph.
Monday Night
Partly cloudy, with a low around 52. Light and variable wind.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. Calm wind.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 55. South wind 3 to 5 mph. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 74. Southwest wind 5 to 8 mph becoming northwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75. Light northwest wind.
Thursday Night
Partly cloudy, with a low around 53. Calm wind.
Friday
Mostly sunny, with a high near 78. Calm wind.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Norwalk WI
 43.86°N 90.67°W
Last Update:
12:06 am CDT Jun 20, 2026
Forecast Valid:
1am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
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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