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.

A Few Clouds

9°F

-13°C

Humidity 88%
Wind Speed Calm
Barometer 30.18 in (1023.9 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Last update 3 Feb 12:55 am CST
Extended Forecast for

2 Miles N Ontario WI

  • Overnight

    Overnight: Partly cloudy, with a low around 5. Light north wind.

    Low: 5 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 23. Wind chill values as low as -3. Calm wind becoming north around 5 mph.

    High: 23 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 1. Calm wind.

    Low: 1 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 24. Calm wind becoming northwest around 5 mph.

    High: 24 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 10. Calm wind.

    Low: 10 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 36. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 36 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 26. Northwest wind 6 to 10 mph, with gusts as high as 22 mph.

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 36. Northwest wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 36 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 7. North wind around 6 mph becoming calm in the evening.

    Low: 7 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 5. Light north wind.
Tuesday
Mostly sunny, with a high near 23. Wind chill values as low as -3. Calm wind becoming north around 5 mph.
Tuesday Night
Partly cloudy, with a low around 1. Calm wind.
Wednesday
Mostly sunny, with a high near 24. Calm wind becoming northwest around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 10. Calm wind.
Thursday
Partly sunny, with a high near 36. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
Mostly cloudy, with a low around 26. Northwest wind 6 to 10 mph, with gusts as high as 22 mph.
Friday
Partly sunny, with a high near 36. Northwest wind 7 to 13 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 7. North wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 26. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 13. Light and variable wind.
Sunday
Mostly sunny, with a high near 31. Calm wind becoming west around 5 mph.
Sunday Night
Partly cloudy, with a low around 15. Light south wind.
Monday
Mostly sunny, with a high near 36. South wind 3 to 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:
8:23 pm CST Feb 2, 2026
Forecast Valid:
1am CST Feb 3, 2026-6pm CST Feb 9, 2026
 
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Additional Resources

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