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.

Overcast

35°F

2°C

Humidity 90%
Wind Speed Calm
Barometer 30.18 in (1023.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 19 Nov 2:55 am CST
Extended Forecast for

2 Miles N Ontario WI

  • Overnight

    Overnight: Mostly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 42. Calm wind.

    High: 42 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: Patchy drizzle after 3am. Cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Cloudy then
    Patchy
    Drizzle

  • Thursday

    Thursday: Patchy drizzle before noon. Mostly cloudy, with a high near 53. Calm wind becoming southwest 5 to 7 mph.

    High: 53 °F

    Patchy
    Drizzle then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 49. Light northwest wind.

    High: 49 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 51. Calm wind becoming south around 6 mph in the afternoon.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31. Light southwest wind.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 28. Calm wind.
Wednesday
Cloudy, with a high near 42. Calm wind.
Wednesday Night
Patchy drizzle after 3am. Cloudy, with a low around 36. Calm wind.
Thursday
Patchy drizzle before noon. Mostly cloudy, with a high near 53. Calm wind becoming southwest 5 to 7 mph.
Thursday Night
Partly cloudy, with a low around 27. Calm wind.
Friday
Mostly sunny, with a high near 49. Light northwest wind.
Friday Night
Partly cloudy, with a low around 26. Calm wind.
Saturday
Mostly sunny, with a high near 51. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 31. Light southwest wind.
Sunday
Mostly sunny, with a high near 52. Calm wind becoming west 5 to 7 mph.
Sunday Night
Partly cloudy, with a low around 29. Calm wind.
Monday
Mostly sunny, with a high near 52. Calm wind becoming west 5 to 8 mph in the morning.
Monday Night
Partly cloudy, with a low around 30. Light and variable wind.
Tuesday
Partly sunny, with a high near 49. Light and variable wind becoming south 5 to 7 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Ontario WI
 43.75°N 90.58°W
Last Update:
3:16 am CST Nov 19, 2025
Forecast Valid:
3am CST Nov 19, 2025-6pm CST Nov 25, 2025
 
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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