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.

Light Rain Fog/Mist

58°F

14°C

Humidity 92%
Wind Speed Calm
Barometer 30.12 in (1020.3 mb)
Dewpoint 56°F (13°C)
Visibility 6.00 mi
Last update 27 Sep 7:55 am CDT
Extended Forecast for

Tomah WISimilar City Names

  • Today

    Today: A chance of showers before 11am, then a chance of sprinkles after noon. Mostly cloudy, with a high near 68. Calm wind. Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Mostly sunny, with a high near 74. Calm wind.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 72. Calm wind becoming south 5 to 8 mph in the morning.

    High: 72 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers. Low around 56. South wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 56 °F

    Showers

  • Wednesday

    Wednesday: Showers likely. Mostly cloudy, with a high near 70. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 69. Calm wind becoming north around 6 mph in the afternoon.

    High: 69 °F

    Chance
    Showers

Detailed Forecast

Today
A chance of showers before 11am, then a chance of sprinkles after noon. Mostly cloudy, with a high near 68. Calm wind. Chance of precipitation is 30%.
Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 51. Calm wind.
Monday
Mostly sunny, with a high near 74. Calm wind.
Monday Night
Partly cloudy, with a low around 50. Calm wind.
Tuesday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 72. Calm wind becoming south 5 to 8 mph in the morning.
Tuesday Night
Showers. Low around 56. South wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
Showers likely. Mostly cloudy, with a high near 70. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 55. Calm wind.
Thursday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 69. Calm wind becoming north around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 44. Light north wind.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 64. Calm wind becoming east around 6 mph in the afternoon.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 42. Calm wind.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 64. Calm wind becoming south around 6 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tomah WISimilar City Names
 43.99°N 90.51°W
Last Update:
8:11 am CDT Sep 27, 2026
Forecast Valid:
8am CDT Sep 27, 2026-6pm CDT Oct 3, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation