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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Sparta WI

  • Tonight

    Tonight: Snow before 4am, then a slight chance of snow and freezing rain. Low around 16. South wind 5 to 7 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. Total nighttime snow accumulation of around an inch possible.

    Low: 16 °F

    Snow then
    Wintry Mix

  • Wednesday

    Wednesday: Partly sunny, with a high near 45. West wind 3 to 5 mph.

    High: 45 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly after 1am. Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 49. Calm wind.

    High: 49 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 57. Light and variable wind becoming west around 6 mph in the afternoon.

    High: 57 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35. Light and variable wind.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 37. Southwest wind around 7 mph becoming southeast after midnight.

    Low: 37 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Snow before 4am, then a slight chance of snow and freezing rain. Low around 16. South wind 5 to 7 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. Total nighttime snow accumulation of around an inch possible.
Wednesday
Partly sunny, with a high near 45. West wind 3 to 5 mph.
Wednesday Night
A 30 percent chance of rain, mainly after 1am. Mostly cloudy, with a low around 31. Calm wind.
Thursday
Mostly sunny, with a high near 49. Calm wind.
Thursday Night
Mostly cloudy, with a low around 33. Calm wind.
Friday
Partly sunny, with a high near 57. Light and variable wind becoming west around 6 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 35. Light and variable wind.
Saturday
Mostly sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the morning.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 37. Southwest wind around 7 mph becoming southeast after midnight.
Sunday
Mostly sunny, with a high near 52. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 23. North wind 3 to 6 mph.
Monday
Partly sunny, with a high near 44. Light and variable wind becoming southeast 5 to 7 mph in the morning.
Monday Night
Mostly cloudy, with a low around 26. Southeast wind 3 to 5 mph.
Tuesday
Mostly cloudy, with a high near 48. South wind 5 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
Last Update:
3:49 pm CDT Mar 17, 2026
Forecast Valid:
4pm CDT Mar 17, 2026-6pm CDT Mar 24, 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