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.

Partly Cloudy

73°F

23°C

Humidity 71%
Wind Speed Calm
Barometer 29.93 in (1013.5 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 27 Jun 6:55 pm CDT
Extended Forecast for

2 Miles S Tomah WI

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 58. Northwest wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: A slight chance of showers and thunderstorms between 11am and 1pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 83. Calm wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 69. South wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 69 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Mostly sunny, with a high near 87. Southwest wind 6 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 10pm, then a chance of showers. Mostly cloudy, with a low around 64. Light west wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 64 °F

    T-storms
    Likely then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 81. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. West wind around 7 mph.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. West wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. West wind around 6 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 58. Northwest wind around 6 mph becoming calm in the evening.
Saturday
A slight chance of showers and thunderstorms between 11am and 1pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 83. Calm wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. South wind 3 to 6 mph. Chance of precipitation is 30%.
Sunday
A slight chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Mostly sunny, with a high near 87. Southwest wind 6 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and thunderstorms likely before 10pm, then a chance of showers. Mostly cloudy, with a low around 64. Light west wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Mostly sunny, with a high near 81. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Mostly clear, with a low around 61. West wind around 7 mph.
Tuesday
Sunny, with a high near 82. West wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 62. West wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 81. Calm wind becoming west 5 to 7 mph in the morning.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60. Calm wind.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind 3 to 5 mph.
Independence Day
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. South wind 6 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Tomah WI
 43.97°N 90.51°W
Last Update:
6:14 pm CDT Jun 27, 2025
Forecast Valid:
7pm CDT Jun 27, 2025-6pm CDT Jul 4, 2025
 
Forecast Discussion
 
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Additional Resources

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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