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

54°F

12°C

Humidity 61%
Wind Speed Calm
Barometer 29.88 in (1012.6 mb)
Dewpoint 41°F (5°C)
Visibility 9.00 mi
Last update 11 Nov 2:55 pm CST
Extended Forecast for

Tomah WI

  • Veterans Day

    Veterans Day: Scattered showers, mainly before 4pm. Cloudy, with a steady temperature around 52. Northwest wind 3 to 5 mph. Chance of precipitation is 30%.

    High: 52 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered sprinkles and flurries between midnight and 3am, then scattered flurries after 3am. Mostly cloudy, with a low around 30. North wind 3 to 7 mph. Winds could gust as high as 22 mph.

    Low: 30 °F

    Mostly Cloudy
    then
    Scattered
    Sprinkles/Flurries

  • Thursday

    Thursday: Scattered sprinkles after 2pm. Mostly cloudy, with a high near 43. North wind 6 to 11 mph, with gusts as high as 24 mph.

    High: 43 °F

    Scattered
    Sprinkles

  • Thursday Night

    Thursday Night: Cloudy, then gradually becoming partly cloudy, with a low around 23. North wind around 6 mph becoming calm in the evening.

    Low: 23 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 41. North wind 5 to 8 mph becoming calm in the afternoon.

    High: 41 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 22. Calm wind.

    Low: 22 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 44. Calm wind.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 47. Calm wind.

    High: 47 °F

    Sunny

Detailed Forecast

Veterans Day
Scattered showers, mainly before 4pm. Cloudy, with a steady temperature around 52. Northwest wind 3 to 5 mph. Chance of precipitation is 30%.
Tonight
Scattered sprinkles and flurries between midnight and 3am, then scattered flurries after 3am. Mostly cloudy, with a low around 30. North wind 3 to 7 mph. Winds could gust as high as 22 mph.
Thursday
Scattered sprinkles after 2pm. Mostly cloudy, with a high near 43. North wind 6 to 11 mph, with gusts as high as 24 mph.
Thursday Night
Cloudy, then gradually becoming partly cloudy, with a low around 23. North wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 41. North wind 5 to 8 mph becoming calm in the afternoon.
Friday Night
Mostly clear, with a low around 22. Calm wind.
Saturday
Sunny, with a high near 44. Calm wind.
Saturday Night
Mostly clear, with a low around 23. Calm wind.
Sunday
Sunny, with a high near 47. Calm wind.
Sunday Night
Mostly clear, with a low around 25. Calm wind.
Monday
Sunny, with a high near 50. Calm wind.
Monday Night
Mostly clear, with a low around 26. Calm wind.
Tuesday
Sunny, with a high near 53. Calm wind becoming south around 6 mph.
Tuesday Night
Mostly clear, with a low around 29. Calm wind.
Wednesday
Mostly sunny, with a high near 55. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 21 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tomah WI
 43.99°N 90.51°W
Last Update:
2:40 pm CST Nov 11, 2026
Forecast Valid:
3pm CST Nov 11, 2026-6pm CST Nov 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation