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

6°F

-14°C

Humidity 73%
Wind Speed Calm
Barometer 30.05 in (1019.8 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Last update 1 Jan 5:55 am CST
Extended Forecast for

2 Miles N Ontario WI

  • New Year's Day

    New Year's Day: Snow likely with scattered flurries before 3pm, then a slight chance of snow between 3pm and 4pm. Mostly cloudy, with a high near 14. Wind chill values as low as zero. Calm wind becoming west around 5 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.

    High: 14 °F

    Snow Likely

  • Tonight

    Tonight: Partly cloudy, with a low around 3. Wind chill values as low as -4. Calm wind becoming northwest around 5 mph after midnight.

    Low: 3 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 19. Light northwest wind.

    High: 19 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 9. Calm wind.

    Low: 9 °F

    Mostly Cloudy

  • Saturday

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

    High: 24 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 4. Calm wind.

    Low: 4 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of snow after noon. Partly sunny, with a high near 26. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 26 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 20. Southeast wind around 5 mph becoming calm after midnight.

    Low: 20 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 37. Light and variable wind.

    High: 37 °F

    Partly Sunny

Detailed Forecast

New Year's Day
Snow likely with scattered flurries before 3pm, then a slight chance of snow between 3pm and 4pm. Mostly cloudy, with a high near 14. Wind chill values as low as zero. Calm wind becoming west around 5 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Partly cloudy, with a low around 3. Wind chill values as low as -4. Calm wind becoming northwest around 5 mph after midnight.
Friday
Mostly sunny, with a high near 19. Light northwest wind.
Friday Night
Mostly cloudy, with a low around 9. Calm wind.
Saturday
Partly sunny, with a high near 24. Calm wind.
Saturday Night
Mostly clear, with a low around 4. Calm wind.
Sunday
A 20 percent chance of snow after noon. Partly sunny, with a high near 26. Calm wind becoming southeast around 6 mph in the afternoon.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 20. Southeast wind around 5 mph becoming calm after midnight.
Monday
Partly sunny, with a high near 37. Light and variable wind.
Monday Night
Mostly cloudy, with a low around 23. Calm wind.
Tuesday
Partly sunny, with a high near 40. Calm wind becoming southwest around 5 mph.
Tuesday Night
Mostly cloudy, with a low around 25. Light west wind.
Wednesday
Partly sunny, with a high near 36. West wind 3 to 6 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Ontario WI
 43.75°N 90.58°W
Last Update:
6:22 am CST Jan 1, 2026
Forecast Valid:
6am CST Jan 1, 2026-6pm CST Jan 7, 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