National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

36°F

2°C

Humidity 42%
Wind Speed NW 15 G 26 mph
Barometer 30.00 in (1017.2 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 6 Feb 1:55 pm CST
Extended Forecast for

2 Miles N Ontario WI

  • This Afternoon

    This Afternoon: Sunny, with a high near 38. Breezy, with a north wind 10 to 17 mph, with gusts as high as 29 mph.

    High: 38 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 2. North wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 24 mph.

    Low: 2 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 24. Calm wind becoming south around 5 mph in the afternoon.

    High: 24 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 17. Southeast wind 3 to 5 mph.

    Low: 17 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 34. Southeast wind around 5 mph becoming calm in the afternoon.

    High: 34 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 20. Calm wind.

    Low: 20 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 44. Calm wind becoming southwest around 6 mph.

    High: 44 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 46. Calm wind becoming northwest 5 to 7 mph in the morning.

    High: 46 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 38. Breezy, with a north wind 10 to 17 mph, with gusts as high as 29 mph.
Tonight
Mostly clear, with a low around 2. North wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 24 mph.
Saturday
Increasing clouds, with a high near 24. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 17. Southeast wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 34. Southeast wind around 5 mph becoming calm in the afternoon.
Sunday Night
Partly cloudy, with a low around 20. Calm wind.
Monday
Partly sunny, with a high near 44. Calm wind becoming southwest around 6 mph.
Monday Night
Mostly cloudy, with a low around 29. Calm wind.
Tuesday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 46. Calm wind becoming northwest 5 to 7 mph in the morning.
Tuesday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 25. Northwest wind around 6 mph.
Wednesday
A 20 percent chance of snow. Partly sunny, with a high near 36. Northwest wind 5 to 8 mph.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 19. Northwest wind around 5 mph becoming calm in the evening.
Thursday
A 20 percent chance of snow. Partly sunny, with a high near 36. Calm wind becoming northwest around 6 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Ontario WI
 43.75°N 90.58°W
Last Update:
1:02 pm CST Feb 6, 2026
Forecast Valid:
2pm CST Feb 6, 2026-6pm CST Feb 12, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation