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.

Fair

60°F

16°C

Humidity 57%
Wind Speed Calm
Barometer 30.34 in (1028.1 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 19 Oct 11:55 am CDT
Extended Forecast for

Tomah WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 66. Light south wind.

    High: 66 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 68. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 68 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41. Southeast wind around 5 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 69. Light southwest wind.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 70. Light and variable wind.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 68. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 66. Light south wind.
Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 40. Calm wind.
Tuesday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 68. Calm wind becoming southeast around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 41. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 69. Light southwest wind.
Wednesday Night
Mostly clear, with a low around 47. Calm wind.
Thursday
Sunny, with a high near 70. Light and variable wind.
Thursday Night
Partly cloudy, with a low around 49. Calm wind.
Friday
Mostly sunny, with a high near 68. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 52. South wind 6 to 8 mph, with gusts as high as 22 mph.
Saturday
Partly sunny, with a high near 69. South wind 7 to 11 mph, with gusts as high as 23 mph.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 51. Southwest wind 5 to 8 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 65. West wind 3 to 6 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Tomah WI
 43.99°N 90.51°W
Last Update:
12:01 pm CDT Oct 19, 2026
Forecast Valid:
12pm CDT Oct 19, 2026-6pm CDT Oct 25, 2026
 
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Additional Resources

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Chance of Precipitation