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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
High: 26 °F
Chance Snow
then SnowTonight
Low: 17 °F
Slight Chance
Snow then
Mostly CloudyWednesday
High: 24 °F⇓
Chance Snow
then Snow
LikelyWednesday Night

Low: -2 °F
Partly Cloudy
New Year's Day

High: 16 °F
Partly Sunny
Thursday Night

Low: 5 °F
Mostly Cloudy
Friday

High: 21 °F
Mostly Sunny
Friday Night

Low: 5 °F
Mostly Cloudy
Saturday

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles N Ontario WI
43.75°N 90.58°W
43.75°N 90.58°W
5:21 am CST Dec 30, 2025
5am CST Dec 30, 2025-6pm CST Jan 5, 2026



