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.

A Few Clouds and Breezy

13°F

-11°C

Humidity 50%
Wind Speed W 21 G 35 mph
Barometer 30.10 in (1021.5 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 22 Jan 1:55 pm CST
Extended Forecast for

4 Miles SW Norwalk WI

Cold Weather Advisory January 23, 12:00pm until January 23, 09:00pm
Extreme Cold Warning January 23, 12:00am until January 23, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
Extreme Cold Warning

  • This Afternoon

    This Afternoon: Scattered snow showers. Patchy blowing snow. Partly sunny, with a high near 11. Wind chill values as low as -22. Breezy, with a west wind 21 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 50%. Total daytime snow accumulation of less than a half inch possible.

    High: 11 °F

    Scattered
    Snow Showers
    and Patchy
    Blowing Snow

  • Tonight

    Tonight: Isolated snow showers before 8pm, then scattered flurries between 8pm and 9pm. Patchy blowing snow before 10pm. Partly cloudy, with a low around -21. Wind chill values as low as -44. Blustery, with a northwest wind 13 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.

    Low: -21 °F

    Isolated Snow
    Showers and
    Patchy
    Blowing Snow

  • Friday

    Friday: Sunny and cold, with a high near -8. Wind chill values as low as -45. Northwest wind 6 to 14 mph, with gusts as high as 23 mph.

    High: -8 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -16. Wind chill values as low as -25. Northwest wind around 5 mph becoming calm in the evening.

    Low: -16 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny and cold, with a high near 1. Calm wind.

    High: 1 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around -9. Light and variable wind.

    Low: -9 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 6. North wind 3 to 7 mph.

    High: 6 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -13. Northwest wind around 6 mph.

    Low: -13 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 9. West wind 6 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 9 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Scattered snow showers. Patchy blowing snow. Partly sunny, with a high near 11. Wind chill values as low as -22. Breezy, with a west wind 21 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 50%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Isolated snow showers before 8pm, then scattered flurries between 8pm and 9pm. Patchy blowing snow before 10pm. Partly cloudy, with a low around -21. Wind chill values as low as -44. Blustery, with a northwest wind 13 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.
Friday
Sunny and cold, with a high near -8. Wind chill values as low as -45. Northwest wind 6 to 14 mph, with gusts as high as 23 mph.
Friday Night
Mostly cloudy, with a low around -16. Wind chill values as low as -25. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny and cold, with a high near 1. Calm wind.
Saturday Night
Mostly cloudy, with a low around -9. Light and variable wind.
Sunday
Partly sunny, with a high near 6. North wind 3 to 7 mph.
Sunday Night
Partly cloudy, with a low around -13. Northwest wind around 6 mph.
Monday
Mostly sunny, with a high near 9. West wind 6 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 2. Southwest wind around 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 14. West wind 8 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around -2. Northwest wind around 7 mph.
Wednesday
Partly sunny, with a high near 11. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around -7. Northwest wind around 8 mph.
Thursday
Mostly sunny, with a high near 7. Northwest wind around 9 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Norwalk WI
 43.8°N 90.7°W
Last Update:
3:16 pm CST Jan 22, 2026
Forecast Valid:
3pm CST Jan 22, 2026-6pm CST Jan 29, 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