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Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

68°F

20°C

Humidity 94%
Wind Speed Calm
Barometer 29.92 in (1013.4 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 9 Aug 10:55 am CDT
Extended Forecast for

Tomah WI

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 79. Southwest wind around 5 mph.

    High: 79 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 84. Calm wind.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 10 percent chance of showers and thunderstorms after 5am. Increasing clouds, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 84. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

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

    High: 83 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59. Light north wind.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 79. Light northeast wind.

    High: 79 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 79. Southwest wind around 5 mph.
Tonight
Partly cloudy, with a low around 61. Calm wind.
Monday
Mostly sunny, with a high near 84. Calm wind.
Monday Night
A 10 percent chance of showers and thunderstorms after 5am. Increasing clouds, with a low around 62. Calm wind.
Tuesday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 84. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 83. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 59. Light north wind.
Thursday
Partly sunny, with a high near 79. Light northeast wind.
Thursday Night
Partly cloudy, with a low around 55. Calm wind.
Friday
Mostly sunny, with a high near 77. Light east wind.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 56. Light southeast wind.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 77. Calm wind becoming southeast around 6 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tomah WI
 43.99°N 90.51°W
Last Update:
11:41 am CDT Aug 9, 2026
Forecast Valid:
12pm CDT Aug 9, 2026-6pm CDT Aug 15, 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