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.

Light Unknown Precip

27°F

-3°C

Humidity 80%
Wind Speed W 14 mph
Barometer 29.54 in (1001.7 mb)
Dewpoint 21°F (-6°C)
Visibility 8.00 mi
Wind Chill16°F (-9°C)
Last update 16 Jan 5:55 pm CST
Extended Forecast for

2 Miles N Ontario WI

  • Tonight

    Tonight: Snow likely, mainly after 9pm. Cloudy, with a low around 11. Wind chill values as low as -2. Blustery, with a northwest wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 11 °F

    Snow Likely
    and Blustery

  • Saturday

    Saturday: Snow likely before 1pm, then a chance of flurries between 1pm and 3pm. Mostly cloudy, with a high near 18. Wind chill values as low as -2. Northwest wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 18 °F

    Snow Likely
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 1. Wind chill values as low as -8. Northwest wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 23 mph.

    Low: 1 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow likely, mainly after noon. Mostly cloudy, with a high near 18. Wind chill values as low as -6. Southwest wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 18 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -6. Northwest wind 11 to 15 mph, with gusts as high as 30 mph.

    Low: -6 °F

    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: Partly sunny and cold, with a high near 4. Blustery, with a northwest wind 10 to 16 mph, with gusts as high as 28 mph.

    High: 4 °F

    Cold and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around -3. West wind 3 to 8 mph. Winds could gust as high as 20 mph.

    Low: -3 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 15. West wind 3 to 6 mph.

    High: 15 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 7. Light and variable wind.

    Low: 7 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Tonight
Snow likely, mainly after 9pm. Cloudy, with a low around 11. Wind chill values as low as -2. Blustery, with a northwest wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Snow likely before 1pm, then a chance of flurries between 1pm and 3pm. Mostly cloudy, with a high near 18. Wind chill values as low as -2. Northwest wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly cloudy, with a low around 1. Wind chill values as low as -8. Northwest wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 23 mph.
Sunday
Snow likely, mainly after noon. Mostly cloudy, with a high near 18. Wind chill values as low as -6. Southwest wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday Night
Mostly cloudy, with a low around -6. Northwest wind 11 to 15 mph, with gusts as high as 30 mph.
M.L.King Day
Partly sunny and cold, with a high near 4. Blustery, with a northwest wind 10 to 16 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around -3. West wind 3 to 8 mph. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 15. West wind 3 to 6 mph.
Tuesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 7. Light and variable wind.
Wednesday
A 20 percent chance of snow. Partly sunny, with a high near 21. West wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 4. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 16. Calm wind becoming northwest 5 to 7 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 3. Light and variable wind.
Friday
A 20 percent chance of snow. Partly sunny, with a high near 21. Calm wind becoming southwest 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:
5:21 pm CST Jan 16, 2026
Forecast Valid:
6pm CST Jan 16, 2026-6pm CST Jan 23, 2026
 
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Additional Resources

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Chance of Precipitation