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Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

13°F

-11°C

Humidity 51%
Wind Speed S 3 mph
Barometer 30.14 in (1024.0 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Last update 20 Jan 5:55 pm CST
Extended Forecast for

3 Miles SW Warrens WI

Extreme Cold Watch January 23, 12:00am until January 24, 12:00pm
Click here for hazard details and duration
Extreme Cold Watch

  • Tonight

    Tonight: A chance of snow, mainly before 2am, then a chance of flurries after 5am. Cloudy, with a low around 6. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 6 °F

    Chance Snow

  • Wednesday

    Wednesday: Snow, mainly after 3pm. High near 22. Wind chill values as low as -1. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    High: 22 °F

    Mostly Cloudy
    then Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow before 9pm. Mostly cloudy, with a low around 0. Wind chill values as low as -12. West wind 9 to 14 mph, with gusts as high as 29 mph. New snow accumulation of less than a half inch possible.

    Low: 0 °F

    Chance Snow
    then Partly
    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 12. Wind chill values as low as -14. West wind 8 to 14 mph, with gusts as high as 24 mph.

    High: 12 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -20. Northwest wind 10 to 13 mph, with gusts as high as 24 mph.

    Low: -20 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -7. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.

    High: -7 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around -19. Northwest wind around 6 mph becoming calm in the evening.

    Low: -19 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 1. Light west wind.

    High: 1 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around -11. Calm wind.

    Low: -11 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of snow, mainly before 2am, then a chance of flurries after 5am. Cloudy, with a low around 6. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Snow, mainly after 3pm. High near 22. Wind chill values as low as -1. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Wednesday Night
A 40 percent chance of snow before 9pm. Mostly cloudy, with a low around 0. Wind chill values as low as -12. West wind 9 to 14 mph, with gusts as high as 29 mph. New snow accumulation of less than a half inch possible.
Thursday
Partly sunny, with a high near 12. Wind chill values as low as -14. West wind 8 to 14 mph, with gusts as high as 24 mph.
Thursday Night
Partly cloudy, with a low around -20. Northwest wind 10 to 13 mph, with gusts as high as 24 mph.
Friday
Mostly sunny and cold, with a high near -7. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.
Friday Night
Partly cloudy, with a low around -19. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny and cold, with a high near 1. Light west wind.
Saturday Night
Mostly cloudy, with a low around -11. Calm wind.
Sunday
Partly sunny, with a high near 8. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around -9. West wind around 6 mph.
Monday
Mostly sunny, with a high near 14. West wind 6 to 8 mph.
Monday Night
Partly cloudy, with a low around 0. West wind around 6 mph.
Tuesday
Partly sunny, with a high near 20. West wind 5 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Warrens WI
 44.09°N 90.54°W
Last Update:
6:51 pm CST Jan 20, 2026
Forecast Valid:
6pm CST Jan 20, 2026-6pm CST Jan 27, 2026
 
Forecast Discussion
 
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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