Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

71°F

22°C

Humidity 73%
Wind Speed Calm
Barometer 29.98 in (1015.2 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 4 Aug 7:55 pm CDT
Extended Forecast for

4 Miles ESE Westby WI

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 5am, then a chance of showers and thunderstorms after 5am.  Cloudy, with a low around 58. Calm wind.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 11am.  Cloudy, then gradually becoming mostly sunny, with a high near 78. Light northwest wind.  Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 53. Calm wind.

    Low: 53 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 82. Light and variable wind.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. Light south wind.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am.  Partly cloudy, with a low around 60. Southwest wind 3 to 8 mph.

    Low: 60 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 61. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 5am, then a chance of showers and thunderstorms after 5am. Cloudy, with a low around 58. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 78. Light northwest wind. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, then gradually becoming clear, with a low around 53. Calm wind.
Thursday
Sunny, with a high near 82. Light and variable wind.
Thursday Night
Mostly clear, with a low around 57. Light south wind.
Friday
Sunny, with a high near 83. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 60. Southwest wind 3 to 8 mph.
Saturday
Mostly sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 61. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm in the evening.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. Light and variable wind becoming northeast 5 to 7 mph in the morning.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61. North wind around 6 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 81. Calm wind becoming northeast around 5 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Westby WI
 43.65°N 90.8°W
5:36 pm CDT Aug 4, 2026
8pm CDT Aug 4, 2026-6pm CDT Aug 11, 2026
 
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Additional Resources

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