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

67°F

19°C

Humidity 36%
Wind Speed SW 15 G 24 mph
Barometer 30.18 in (1022.4 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 18 Oct 1:55 pm CDT
Extended Forecast for

Tomah WI

  • This Afternoon

    This Afternoon: Sunny, with a high near 65. Breezy, with a south wind 13 to 16 mph, with gusts as high as 26 mph.

    High: 65 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 39. Southwest wind 3 to 7 mph. Winds could gust as high as 22 mph.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 66. Calm wind.

    High: 66 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67. Calm wind becoming south around 5 mph in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. Calm wind becoming southwest around 5 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

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

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 70. Calm wind.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 65. Breezy, with a south wind 13 to 16 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 39. Southwest wind 3 to 7 mph. Winds could gust as high as 22 mph.
Monday
Mostly sunny, with a high near 66. Calm wind.
Monday Night
Partly cloudy, with a low around 38. Calm wind.
Tuesday
Mostly sunny, with a high near 67. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 42. Calm wind.
Wednesday
Sunny, with a high near 70. Calm wind becoming southwest around 5 mph.
Wednesday Night
Mostly clear, with a low around 47. Calm wind.
Thursday
Mostly sunny, with a high near 70. Calm wind.
Thursday Night
Mostly clear, with a low around 48. Calm wind.
Friday
Mostly sunny, with a high near 68. Calm wind becoming southeast 5 to 8 mph in the morning.
Friday Night
Mostly cloudy, with a low around 51. Southeast wind around 6 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 69. South wind 6 to 11 mph, with gusts as high as 22 mph.
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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:
2:16 pm CDT Oct 18, 2026
Forecast Valid:
2pm CDT Oct 18, 2026-6pm CDT Oct 24, 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