Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Overcast

7°F

-14°C

Humidity 78%
Wind Speed Calm
Barometer 30.24 in (1026.4 mb)
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Last update 30 Dec 4:55 am CST
Extended Forecast for

2 Miles N Ontario WI

  • Today

    Today: Snow, mainly after 9am.  High near 26. Wind chill values as low as zero. Calm wind becoming southwest 5 to 7 mph in the morning.  Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.

    High: 26 °F

    Chance Snow
    then Snow

  • Tonight

    Tonight: A 20 percent chance of snow before 9pm.  Mostly cloudy, with a low around 17. Northwest wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 17 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Wednesday

    Wednesday: Snow likely, mainly after noon.  Mostly cloudy, with a temperature rising to near 24 by 10am, then falling to around 16 during the remainder of the day. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 24 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -2. Northwest wind 5 to 7 mph becoming calm  in the evening. Winds could gust as high as 20 mph.

    Low: -2 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 16. Calm wind becoming west around 5 mph.

    High: 16 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 5. Calm wind.

    Low: 5 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 21. Calm wind becoming northwest around 5 mph.

    High: 21 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 5. Calm wind.

    Low: 5 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 24. Light west wind.

    High: 24 °F

    Partly Sunny

Detailed Forecast

Today
Snow, mainly after 9am. High near 26. Wind chill values as low as zero. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.
Tonight
A 20 percent chance of snow before 9pm. Mostly cloudy, with a low around 17. Northwest wind 6 to 8 mph, with gusts as high as 20 mph.
Wednesday
Snow likely, mainly after noon. Mostly cloudy, with a temperature rising to near 24 by 10am, then falling to around 16 during the remainder of the day. Northwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around -2. Northwest wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.
New Year's Day
Partly sunny, with a high near 16. Calm wind becoming west around 5 mph.
Thursday Night
Mostly cloudy, with a low around 5. Calm wind.
Friday
Mostly sunny, with a high near 21. Calm wind becoming northwest around 5 mph.
Friday Night
Mostly cloudy, with a low around 5. Calm wind.
Saturday
Partly sunny, with a high near 24. Light west wind.
Saturday Night
Mostly cloudy, with a low around 14. Calm wind.
Sunday
Mostly cloudy, with a high near 32. Calm wind becoming south around 5 mph.
Sunday Night
Mostly cloudy, with a low around 16. Light and variable wind.
Monday
Partly sunny, with a high near 30. West wind 3 to 7 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Ontario WI
 43.75°N 90.58°W
5:21 am CST Dec 30, 2025
5am CST Dec 30, 2025-6pm CST Jan 5, 2026
 
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