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.

Overcast

16°F

-9°C

Humidity 84%
Wind Speed Calm
Barometer 29.84 in (1012.4 mb)
Dewpoint 12°F (-11°C)
Visibility 9.00 mi
Last update 21 Jan 9:55 am CST
Extended Forecast for

Warrens WI

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

  • Today

    Today: Scattered flurries before 1pm, then snow showers, mainly after 1pm. High near 23. West wind 7 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. Total daytime snow accumulation of around an inch possible.

    High: 23 °F

    Mostly Cloudy
    then Snow
    Showers

  • Tonight

    Tonight: Snow showers likely, mainly before 7pm. Mostly cloudy, with a low around 2. Wind chill values as low as -9. Blustery, with a west wind 9 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 2 °F

    Snow Showers
    Likely and
    Blustery then
    Mostly Cloudy

  • Thursday

    Thursday: Scattered flurries with isolated snow showers before 1pm, then scattered flurries between 1pm and 5pm. Mostly cloudy, with a high near 13. Wind chill values as low as -11. West wind 7 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 13 °F

    Mostly Cloudy
    then Isolated
    Snow Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -21. Wind chill values as low as -40. Northwest wind 10 to 13 mph, with gusts as high as 25 mph.

    Low: -21 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -8. Northwest wind 6 to 10 mph, with gusts as high as 22 mph.

    High: -8 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around -22. Northwest wind around 5 mph becoming calm in the evening.

    Low: -22 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 0. Calm wind.

    High: 0 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around -13. Calm wind.

    Low: -13 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 7. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 7 °F

    Partly Sunny

Detailed Forecast

Today
Scattered flurries before 1pm, then snow showers, mainly after 1pm. High near 23. West wind 7 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. Total daytime snow accumulation of around an inch possible.
Tonight
Snow showers likely, mainly before 7pm. Mostly cloudy, with a low around 2. Wind chill values as low as -9. Blustery, with a west wind 9 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
Scattered flurries with isolated snow showers before 1pm, then scattered flurries between 1pm and 5pm. Mostly cloudy, with a high near 13. Wind chill values as low as -11. West wind 7 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around -21. Wind chill values as low as -40. Northwest wind 10 to 13 mph, with gusts as high as 25 mph.
Friday
Mostly sunny and cold, with a high near -8. Northwest wind 6 to 10 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around -22. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny and cold, with a high near 0. Calm wind.
Saturday Night
Mostly cloudy, with a low around -13. Calm wind.
Sunday
Partly sunny, with a high near 7. Calm wind becoming northwest around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around -11. West wind 3 to 5 mph.
Monday
Mostly sunny, with a high near 13. West wind 5 to 8 mph.
Monday Night
Partly cloudy, with a low around -2. West wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 19. West wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Warrens WI
 44.14°N 90.51°W
Last Update:
9:31 am CST Jan 21, 2026
Forecast Valid:
10am CST Jan 21, 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