National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Overcast

39°F

4°C

Humidity 58%
Wind Speed Calm
Barometer 30.24 in (1025.7 mb)
Dewpoint 25°F (-4°C)
Visibility 8.00 mi
Last update 2 Mar 3:55 pm CST
Extended Forecast for

Tomah WI

  • Tonight

    Tonight: A slight chance of freezing rain before 4am, then a slight chance of drizzle or freezing rain between 4am and 5am, then a slight chance of freezing rain after 5am. Mostly cloudy, with a low around 27. Calm wind. Chance of precipitation is 20%.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance
    Drizzle/Freezing
    Rain

  • Tuesday

    Tuesday: A chance of freezing rain before 9am, then a slight chance of drizzle between 9am and 11am. Mostly cloudy, then gradually becoming sunny, with a high near 46. Calm wind. Chance of precipitation is 30%.

    High: 46 °F

    Chance
    Drizzle/Freezing
    Rain then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 52. Light east wind.

    High: 52 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after midnight. Partly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: A 40 percent chance of rain. Mostly cloudy, with a high near 47. Calm wind becoming east around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 35. Calm wind becoming southeast around 5 mph after midnight.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: Rain. High near 57. Southeast wind 5 to 8 mph. Chance of precipitation is 90%.

    High: 57 °F

    Rain

  • Friday Night

    Friday Night: Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Mostly cloudy, with a low around 39. South wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 70%.

    Low: 39 °F

    Rain Likely

Detailed Forecast

Tonight
A slight chance of freezing rain before 4am, then a slight chance of drizzle or freezing rain between 4am and 5am, then a slight chance of freezing rain after 5am. Mostly cloudy, with a low around 27. Calm wind. Chance of precipitation is 20%.
Tuesday
A chance of freezing rain before 9am, then a slight chance of drizzle between 9am and 11am. Mostly cloudy, then gradually becoming sunny, with a high near 46. Calm wind. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 25. Calm wind.
Wednesday
Sunny, with a high near 52. Light east wind.
Wednesday Night
A 20 percent chance of rain after midnight. Partly cloudy, with a low around 31. Calm wind.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 47. Calm wind becoming east around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 35. Calm wind becoming southeast around 5 mph after midnight.
Friday
Rain. High near 57. Southeast wind 5 to 8 mph. Chance of precipitation is 90%.
Friday Night
Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Mostly cloudy, with a low around 39. South wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 70%.
Saturday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 56. West wind 6 to 8 mph.
Saturday Night
Mostly clear, with a low around 31. Southwest wind around 6 mph.
Sunday
Sunny, with a high near 58. Southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 35. Southwest wind around 7 mph, with gusts as high as 18 mph.
Monday
A 20 percent chance of rain. Sunny, with a high near 59. West wind 6 to 14 mph becoming south in the afternoon.
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:
1:01 pm CST Mar 2, 2026
Forecast Valid:
4pm CST Mar 2, 2026-6pm CDT Mar 9, 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