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.

Fair

62°F

17°C

Humidity 25%
Wind Speed W 12 G 17 mph
Barometer 29.90 in (1013.3 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 2 May 5:55 pm CDT
Extended Forecast for

5 Miles SSW Sparta WI

  • Tonight

    Tonight: A chance of sprinkles between midnight and 1am, then a chance of showers after 1am. Increasing clouds, with a low around 46. Southwest wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 46 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of sprinkles with a slight chance of showers before 7am, then a chance of sprinkles between 7am and 8am. Partly sunny, then gradually becoming sunny, with a high near 69. Southwest wind 10 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 10%.

    High: 69 °F

    Slight Chance
    Showers then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. Light and variable wind becoming south 5 to 7 mph after midnight.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 75. Breezy, with a southwest wind 8 to 16 mph, with gusts as high as 25 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Sunny then
    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 1am. Partly cloudy, with a low around 39. Northwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 39 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. Calm wind becoming northwest 5 to 9 mph in the morning.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. Northwest wind around 6 mph becoming calm in the evening.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 57. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 57 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 35. Light northwest wind.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of sprinkles between midnight and 1am, then a chance of showers after 1am. Increasing clouds, with a low around 46. Southwest wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Sunday
A chance of sprinkles with a slight chance of showers before 7am, then a chance of sprinkles between 7am and 8am. Partly sunny, then gradually becoming sunny, with a high near 69. Southwest wind 10 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 10%.
Sunday Night
Mostly clear, with a low around 44. Light and variable wind becoming south 5 to 7 mph after midnight.
Monday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 75. Breezy, with a southwest wind 8 to 16 mph, with gusts as high as 25 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 1am. Partly cloudy, with a low around 39. Northwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 57. Calm wind becoming northwest 5 to 9 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 33. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 57. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 35. Light northwest wind.
Thursday
A 40 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 59. Calm wind becoming northwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 35. Light and variable wind.
Friday
A 20 percent chance of showers. Sunny, with a high near 66. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 41. Light and variable wind.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 69. Calm wind becoming west around 6 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Sparta WI
 43.89°N 90.82°W
Last Update:
6:36 pm CDT May 2, 2026
Forecast Valid:
6pm CDT May 2, 2026-6pm CDT May 9, 2026
 
Forecast Discussion
 
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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