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.

Fog/Mist

36°F

2°C

Humidity 98%
Wind Speed Calm
Barometer 29.61 in (1003.9 mb)
Dewpoint 35°F (2°C)
Visibility 0.75 mi
Last update 6 Jan 2:55 pm CST
Extended Forecast for

Cataract WI

  • This Afternoon

    This Afternoon: A 30 percent chance of rain, mainly between 4pm and 5pm. Patchy fog. Otherwise, cloudy, with a high near 36. West wind around 6 mph.

    High: 36 °F

    Chance Rain
    and Patchy
    Fog

  • Tonight

    Tonight: A 20 percent chance of rain before 7pm. Areas of fog between 8pm and 10pm. Areas of freezing fog after 10pm. Otherwise, mostly cloudy, with a low around 24. West wind 3 to 6 mph.

    Low: 24 °F

    Slight Chance
    Rain and
    Areas
    Freezing Fog

  • Wednesday

    Wednesday: Areas of freezing fog before 10am. Mostly sunny, with a high near 40. Calm wind becoming south around 6 mph.

    High: 40 °F

    Areas
    Freezing Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. Light south wind.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of rain after noon. Mostly cloudy, with a high near 42. Calm wind. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 42 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 28. Calm wind becoming north around 6 mph in the evening. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 28 °F

    Rain Likely

  • Friday

    Friday: A slight chance of rain and snow before noon. Partly sunny, with a high near 38. Northwest wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 20%.

    High: 38 °F

    Slight Chance
    Rain/Snow
    then Partly
    Sunny

  • Friday Night

    Friday Night: A 50 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 23. Calm wind becoming north around 6 mph after midnight.

    Low: 23 °F

    Slight Chance
    Snow then
    Chance Snow

  • Saturday

    Saturday: Snow likely, mainly before noon. Mostly cloudy, with a high near 30. Northwest wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 30 °F

    Snow Likely

Detailed Forecast

This Afternoon
A 30 percent chance of rain, mainly between 4pm and 5pm. Patchy fog. Otherwise, cloudy, with a high near 36. West wind around 6 mph.
Tonight
A 20 percent chance of rain before 7pm. Areas of fog between 8pm and 10pm. Areas of freezing fog after 10pm. Otherwise, mostly cloudy, with a low around 24. West wind 3 to 6 mph.
Wednesday
Areas of freezing fog before 10am. Mostly sunny, with a high near 40. Calm wind becoming south around 6 mph.
Wednesday Night
Partly cloudy, with a low around 29. Light south wind.
Thursday
A 50 percent chance of rain after noon. Mostly cloudy, with a high near 42. Calm wind. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 28. Calm wind becoming north around 6 mph in the evening. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A slight chance of rain and snow before noon. Partly sunny, with a high near 38. Northwest wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 20%.
Friday Night
A 50 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 23. Calm wind becoming north around 6 mph after midnight.
Saturday
Snow likely, mainly before noon. Mostly cloudy, with a high near 30. Northwest wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 15. Northwest wind 6 to 10 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 29. West wind around 7 mph.
Sunday Night
Partly cloudy, with a low around 18. Southwest wind around 6 mph.
Monday
Partly sunny, with a high near 38. West wind around 7 mph.
Monday Night
Mostly cloudy, with a low around 24. West wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 36. West wind around 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cataract WI
 44.08°N 90.84°W
Last Update:
3:16 pm CST Jan 6, 2026
Forecast Valid:
3pm CST Jan 6, 2026-6pm CST Jan 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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