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.

Overcast

64°F

18°C

Humidity 94%
Wind Speed SE 5 mph
Barometer 29.54 in (1000.3 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 3 Nov 11:55 pm CST
Extended Forecast for

Tomah WISimilar City Names

  • Overnight

    Overnight: A 50 percent chance of showers. Cloudy, with a low around 55. Southeast wind around 6 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 55 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers. Temperature rising to near 58 by 10am, then falling to around 52 during the remainder of the day. Southwest wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F⇓

    Showers

  • Wednesday Night

    Wednesday Night: Showers. Low around 43. Southwest wind 5 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Showers

  • Thursday

    Thursday: Showers before 10am, then showers after 11am. High near 51. West wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 33. North wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 33 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 49. North wind 5 to 9 mph becoming calm in the afternoon.

    High: 49 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 53. Light and variable wind.

    High: 53 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of showers. Cloudy, with a low around 55. Southeast wind around 6 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers. Temperature rising to near 58 by 10am, then falling to around 52 during the remainder of the day. Southwest wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Showers. Low around 43. Southwest wind 5 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers before 10am, then showers after 11am. High near 51. West wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 33. North wind 7 to 11 mph, with gusts as high as 22 mph.
Friday
Partly sunny, with a high near 49. North wind 5 to 9 mph becoming calm in the afternoon.
Friday Night
Partly cloudy, with a low around 27. Calm wind.
Saturday
Mostly sunny, with a high near 53. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 30. Calm wind.
Sunday
A 20 percent chance of showers. Sunny, with a high near 58. Calm wind becoming west 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 31. Calm wind.
Monday
Mostly sunny, with a high near 61. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Monday Night
Partly cloudy, with a low around 35. West wind 3 to 5 mph.
Tuesday
Sunny, with a high near 59. West wind 3 to 7 mph.
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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:
11:51 pm CST Nov 3, 2026
Forecast Valid:
12am CST Nov 4, 2026-6pm CST Nov 10, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation