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

51°F

11°C

Humidity 98%
Wind Speed Calm
Barometer 29.99 in (1015.9 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 14 Oct 1:55 am CDT
Extended Forecast for

Tomah WISimilar City Names

  • Overnight

    Overnight: Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 61. Calm wind becoming north around 5 mph.

    High: 61 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42. Light east wind.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, mainly after 10am. High near 56. Light and variable wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers before 1am. Low around 38. Breezy, with a light north wind becoming northwest 13 to 18 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Showers and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 54. Breezy, with a north wind 16 to 21 mph, with gusts as high as 34 mph.

    High: 54 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 29. North wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear
    then Frost

  • Saturday

    Saturday: Widespread frost before 9am. Otherwise, sunny, with a high near 60. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

    High: 60 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 36. Southwest wind 7 to 9 mph, with gusts as high as 24 mph.

    Low: 36 °F

    Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 44. Calm wind.
Wednesday
Partly sunny, with a high near 61. Calm wind becoming north around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 42. Light east wind.
Thursday
Showers, mainly after 10am. High near 56. Light and variable wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers before 1am. Low around 38. Breezy, with a light north wind becoming northwest 13 to 18 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Partly sunny, with a high near 54. Breezy, with a north wind 16 to 21 mph, with gusts as high as 34 mph.
Friday Night
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 29. North wind around 5 mph becoming calm in the evening.
Saturday
Widespread frost before 9am. Otherwise, sunny, with a high near 60. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Saturday Night
Clear, with a low around 36. Southwest wind 7 to 9 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 65. Breezy, with a southwest wind 10 to 16 mph, with gusts as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 43. Southwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 24 mph.
Monday
Mostly sunny, with a high near 67. Light west wind.
Monday Night
Mostly clear, with a low around 39. Calm wind.
Tuesday
Sunny, with a high near 70. Calm wind becoming south around 6 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Tomah WISimilar City Names
 43.99°N 90.51°W
Last Update:
1:26 am CDT Oct 14, 2026
Forecast Valid:
2am CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
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