Hazardous Weather Conditions
Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
Tomah WI
Today

High: 76 °F
Increasing
CloudsTonight

Low: 42 °F
Chance
ShowersTuesday

High: 58 °F
Chance
T-stormsTuesday Night

Low: 28 °F
Mostly Cloudy
Wednesday
High: 43 °F
Partly Sunny
then Chance
Rain/SnowWednesday Night

Low: 27 °F
Wintry Mix
Thursday

High: 40 °F
Wintry Mix
and BreezyThursday Night
Low: 28 °F
Showers
Likely then
Rain/Snow
LikelyFriday
High: 47 °F
Partly Sunny
then Chance
Showers
Detailed Forecast
Today
Increasing clouds, with a high near 76. Light and variable wind becoming south 6 to 11 mph in the afternoon.
Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers after 4am. Mostly cloudy, then gradually becoming mostly clear, with a low around 42. Light and variable wind becoming east 5 to 10 mph in the evening. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 58. East wind 8 to 13 mph becoming northwest in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Mostly cloudy, with a low around 28. North wind 6 to 11 mph, with gusts as high as 23 mph.
Wednesday
A chance of snow showers after 1pm, mixing with rain after 4pm. Mostly cloudy, with a high near 43. East wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Wednesday Night
Snow showers likely, possibly mixed with rain showers and freezing rain before 10pm, then snow showers and freezing rain between 10pm and 4am, then freezing rain, possibly mixed with snow showers and sleet after 4am. Low around 27. East wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New ice accumulation of 0.1 to 0.2 of an inch possible. New snow and sleet accumulation of 1 to 3 inches possible.
Thursday
Rain and freezing rain, possibly mixed with snow and sleet before 7am, then rain showers and freezing rain, possibly mixed with sleet between 7am and 1pm, then rain showers after 1pm. High near 40. Breezy, with an east wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 90%.
Thursday Night
Rain showers likely before 1am, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 28. Northeast wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 47. North wind 6 to 9 mph becoming east in the afternoon.
Friday Night
Rain and snow showers likely, mainly after 1am. Mostly cloudy, with a low around 31. East wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Saturday
Rain and snow showers likely. Mostly cloudy, with a high near 47. Breezy, with an east wind 11 to 16 mph becoming west in the afternoon. Chance of precipitation is 60%.
Saturday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 29. West wind 11 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 46. Northwest wind 11 to 15 mph, with gusts as high as 25 mph.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Tomah WI
43.99°N 90.51°W
43.99°N 90.51°W
8:01 am CDT Mar 30, 2026
8am CDT Mar 30, 2026-6pm CDT Apr 5, 2026



