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 52%
Wind Speed Calm
Barometer 29.91 in (1013.9 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 15 Feb 11:55 am CST
Extended Forecast for

Tomah WISimilar City Names

  • This Afternoon

    This Afternoon: Sunny, with a high near 54. West wind around 6 mph becoming calm.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 21 mph.

    Low: 36 °F

    Mostly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 57. West wind 5 to 9 mph becoming calm in the afternoon. Winds could gust as high as 21 mph.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. Calm wind becoming east around 5 mph after midnight.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 49. Breezy, with an east wind 6 to 16 mph, with gusts as high as 29 mph.

    High: 49 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain likely, then rain and possibly a thunderstorm after midnight. Low around 39. East wind 8 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain. Mostly sunny, with a high near 52. Southeast wind 8 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.

    High: 52 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before midnight, then a slight chance of snow. Partly cloudy, with a low around 27. West wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 27 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Thursday

    Thursday: A chance of rain and snow after noon. Mostly sunny, with a high near 43. West wind 6 to 8 mph becoming north in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 30%.

    High: 43 °F

    Mostly Sunny
    then Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Sunny, with a high near 54. West wind around 6 mph becoming calm.
Tonight
Mostly cloudy, with a low around 36. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 21 mph.
Washington's Birthday
Mostly sunny, with a high near 57. West wind 5 to 9 mph becoming calm in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Partly cloudy, with a low around 31. Calm wind becoming east around 5 mph after midnight.
Tuesday
Mostly cloudy, with a high near 49. Breezy, with an east wind 6 to 16 mph, with gusts as high as 29 mph.
Tuesday Night
Rain likely, then rain and possibly a thunderstorm after midnight. Low around 39. East wind 8 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A 50 percent chance of rain. Mostly sunny, with a high near 52. Southeast wind 8 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
A chance of rain and snow before midnight, then a slight chance of snow. Partly cloudy, with a low around 27. West wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Thursday
A chance of rain and snow after noon. Mostly sunny, with a high near 43. West wind 6 to 8 mph becoming north in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 30%.
Thursday Night
A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 23. North wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 32. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 15. Northwest wind around 6 mph.
Saturday
Partly sunny, with a high near 29. Northwest wind 5 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:
11:01 am CST Feb 15, 2026
Forecast Valid:
12pm CST Feb 15, 2026-6pm CST Feb 21, 2026
 
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