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

27°F

-3°C

Humidity 74%
Wind Speed Calm
Barometer 30.11 in (1021.2 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 11 Jan 10:55 pm CST
Extended Forecast for

2 Miles S Tomah WI

  • Tonight

    Tonight: Partly cloudy, with a low around 22. West wind 8 to 14 mph, with gusts as high as 28 mph.

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41. West wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 29. Calm wind becoming southwest 5 to 7 mph after midnight. Winds could gust as high as 18 mph.

    Low: 29 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 44. Breezy, with a west wind 11 to 16 mph, with gusts as high as 28 mph.

    High: 44 °F

    Chance Rain
    and Breezy

  • Tuesday Night

    Tuesday Night: A chance of rain and snow between midnight and 3am, then a chance of snow after 3am. Mostly cloudy, with a low around 20. Blustery, with a west wind 13 to 17 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.

    Low: 20 °F

    Cloudy then
    Chance
    Rain/Snow and
    Blustery

  • Wednesday

    Wednesday: A 30 percent chance of snow before noon. Partly sunny, with a high near 27. Blustery, with a north wind 15 to 20 mph, with gusts as high as 37 mph.

    High: 27 °F

    Blustery.
    Chance Snow
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 8. North wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 23 mph.

    Low: 8 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow after noon. Mostly sunny, with a high near 26. Calm wind becoming south around 6 mph in the afternoon.

    High: 26 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 19. South wind around 6 mph. Chance of precipitation is 60%.

    Low: 19 °F

    Snow Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 22. West wind 8 to 14 mph, with gusts as high as 28 mph.
Monday
Mostly sunny, with a high near 41. West wind 7 to 10 mph, with gusts as high as 21 mph.
Monday Night
Increasing clouds, with a low around 29. Calm wind becoming southwest 5 to 7 mph after midnight. Winds could gust as high as 18 mph.
Tuesday
A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 44. Breezy, with a west wind 11 to 16 mph, with gusts as high as 28 mph.
Tuesday Night
A chance of rain and snow between midnight and 3am, then a chance of snow after 3am. Mostly cloudy, with a low around 20. Blustery, with a west wind 13 to 17 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of snow before noon. Partly sunny, with a high near 27. Blustery, with a north wind 15 to 20 mph, with gusts as high as 37 mph.
Wednesday Night
Partly cloudy, with a low around 8. North wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 23 mph.
Thursday
A 30 percent chance of snow after noon. Mostly sunny, with a high near 26. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 19. South wind around 6 mph. Chance of precipitation is 60%.
Friday
Snow likely. Mostly cloudy, with a high near 29. South wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 9. Northwest wind around 7 mph.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 19. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 3. West wind around 8 mph, with gusts as high as 18 mph.
Sunday
Partly sunny, with a high near 20. West wind 8 to 10 mph, with gusts as high as 20 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Tomah WI
 43.97°N 90.51°W
Last Update:
8:37 pm CST Jan 11, 2026
Forecast Valid:
11pm CST Jan 11, 2026-6pm CST Jan 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