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Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

45°F

7°C

Humidity 79%
Wind Speed Calm
Barometer 29.95 in (1015.4 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 24 Nov 8:55 am CST
Extended Forecast for

Sparta WI

  • Today

    Today: Rain likely, mainly after 4pm. Cloudy, with a high near 52. Southwest wind 3 to 7 mph. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Cloudy then
    Rain Likely

  • Tonight

    Tonight: Rain, mainly before midnight. Low around 42. Light south wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain then
    Chance Rain

  • Tuesday

    Tuesday: Rain, mainly after 11am. High near 52. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely before midnight, then snow likely, possibly mixed with rain between midnight and 3am, then snow likely after 3am. Cloudy, with a low around 25. Blustery, with a west wind 9 to 14 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Rain Likely
    then
    Rain/Snow
    Likely and
    Blustery

  • Wednesday

    Wednesday: A 40 percent chance of snow. Mostly cloudy, with a high near 32. Breezy, with a northwest wind 20 to 22 mph, with gusts as high as 36 mph. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 19. Breezy, with a northwest wind 9 to 18 mph, with gusts as high as 31 mph.

    Low: 19 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Partly sunny, with a high near 29. Northwest wind 7 to 14 mph, with gusts as high as 23 mph.

    High: 29 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 14. Northwest wind around 6 mph becoming calm after midnight. Winds could gust as high as 20 mph.

    Low: 14 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 29. Light northwest wind.

    High: 29 °F

    Partly Sunny

Detailed Forecast

Today
Rain likely, mainly after 4pm. Cloudy, with a high near 52. Southwest wind 3 to 7 mph. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain, mainly before midnight. Low around 42. Light south wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain, mainly after 11am. High near 52. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain likely before midnight, then snow likely, possibly mixed with rain between midnight and 3am, then snow likely after 3am. Cloudy, with a low around 25. Blustery, with a west wind 9 to 14 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday
A 40 percent chance of snow. Mostly cloudy, with a high near 32. Breezy, with a northwest wind 20 to 22 mph, with gusts as high as 36 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly cloudy, with a low around 19. Breezy, with a northwest wind 9 to 18 mph, with gusts as high as 31 mph.
Thanksgiving Day
Partly sunny, with a high near 29. Northwest wind 7 to 14 mph, with gusts as high as 23 mph.
Thursday Night
Mostly cloudy, with a low around 14. Northwest wind around 6 mph becoming calm after midnight. Winds could gust as high as 20 mph.
Friday
Partly sunny, with a high near 29. Light northwest wind.
Friday Night
A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 16. Calm wind.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 31. Calm wind becoming east around 5 mph.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 19. Calm wind.
Sunday
A 20 percent chance of snow. Mostly cloudy, with a high near 31. Calm wind becoming north around 6 mph in the afternoon.
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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:
4:21 am CST Nov 24, 2025
Forecast Valid:
9am CST Nov 24, 2025-6pm CST Nov 30, 2025
 
Forecast Discussion
 
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Additional Resources

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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