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.

Mostly Cloudy

59°F

15°C

Humidity 98%
Wind Speed Calm
Barometer 30.07 in (1018.3 mb)
Dewpoint 59°F (15°C)
Visibility 9.00 mi
Last update 10 Sep 3:55 am CDT
Extended Forecast for

2 Miles ENE Cashton WI

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms. Cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 74. Calm wind.

    High: 74 °F

    Chance
    T-storms then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 77. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 77 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. Calm wind becoming southeast around 6 mph after midnight.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 82. South wind 6 to 9 mph.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. Southeast wind around 7 mph.

    Low: 65 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 85. South wind around 6 mph.

    High: 85 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 63. East wind 3 to 6 mph.

    Low: 63 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Cloudy, with a low around 57. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 74. Calm wind.
Wednesday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 55. Calm wind.
Thursday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 77. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 56. Calm wind becoming southeast around 6 mph after midnight.
Friday
Mostly sunny, with a high near 82. South wind 6 to 9 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. Southeast wind around 7 mph.
Saturday
Partly sunny, with a high near 85. South wind around 6 mph.
Saturday Night
Mostly cloudy, with a low around 63. East wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 85. Southeast wind around 7 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Southeast wind around 7 mph.
Monday
Partly sunny, with a high near 82. South wind around 7 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61. Southeast wind around 6 mph.
Tuesday
Mostly sunny, with a high near 83. South wind around 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Cashton WI
 43.76°N 90.76°W
Last Update:
4:28 am CDT Sep 10, 2025
Forecast Valid:
4am CDT Sep 10, 2025-6pm CDT Sep 16, 2025
 
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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