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

Damaging Winds Tonight - Friday Morning With Snow in Central WI, Then a Potentially Historic Weekend Snowstorm

Two back-to-back intense storm systems will move through the region tonight into this weekend. DAMAGING WIND areawide is the main hazard late tonight through Friday morning, along with some snow mainly in central Wisconsin. Then a POTENTIALLY HISTORIC SNOWSTORM is expected mainly Saturday night through Sunday night. Monitor the forecast for the latest updates and make appropriate preparations! Read More >

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Partly Cloudy

45°F

7°C

Humidity 36%
Wind Speed S 12 G 18 mph
Barometer 29.95 in (1015.3 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 12 Mar 2:55 pm CDT
Extended Forecast for

Tomah WI

Winter Storm Watch March 14, 07:00pm until March 16, 01:00pm
Wind Advisory March 13, 12:00am until March 13, 01:00pm
Click here for hazard details and duration
Winter Storm Watch
Wind Advisory

  • This Afternoon

    This Afternoon: A slight chance of rain and snow between 4pm and 5pm, then a chance of rain. Cloudy, with a high near 46. Breezy, with a south wind around 16 mph. Chance of precipitation is 30%.

    High: 46 °F

    Chance
    Rain/Snow and
    Breezy

  • Tonight

    Tonight: Rain and snow before 1am, then a chance of rain between 1am and 5am, then a chance of rain and snow after 5am. Low around 29. Breezy, with a south wind 17 to 23 mph becoming west after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 29 °F

    Rain/Snow and
    Breezy

  • Friday

    Friday: A 30 percent chance of snow, mainly before 9am. Patchy blowing snow before 11am. Mostly cloudy, with a high near 40. Windy, with a northwest wind 25 to 30 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 55 mph.

    High: 40 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23. Northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after 1pm. Mostly cloudy, with a high near 40. Calm wind becoming south around 5 mph in the afternoon.

    High: 40 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Snow. The snow could be heavy at times. Low around 26. East wind 5 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of 7 to 11 inches possible.

    Low: 26 °F

    Heavy Snow

  • Sunday

    Sunday: Snow. The snow could be heavy at times. Patchy blowing snow after 9am. High near 32. Breezy, with a northeast wind 15 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 100%.

    High: 32 °F

    Heavy Snow
    and Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 1am. The snow could be heavy at times. Cloudy, with a low around 10. Blustery, with a north wind around 22 mph, with gusts as high as 38 mph. Chance of precipitation is 70%.

    Low: 10 °F

    Heavy Snow
    and Blustery

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 19. Blustery, with a northwest wind 20 to 23 mph, with gusts as high as 34 mph.

    High: 19 °F

    Chance Snow
    and Blustery

Detailed Forecast

This Afternoon
A slight chance of rain and snow between 4pm and 5pm, then a chance of rain. Cloudy, with a high near 46. Breezy, with a south wind around 16 mph. Chance of precipitation is 30%.
Tonight
Rain and snow before 1am, then a chance of rain between 1am and 5am, then a chance of rain and snow after 5am. Low around 29. Breezy, with a south wind 17 to 23 mph becoming west after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday
A 30 percent chance of snow, mainly before 9am. Patchy blowing snow before 11am. Mostly cloudy, with a high near 40. Windy, with a northwest wind 25 to 30 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 55 mph.
Friday Night
Mostly cloudy, with a low around 23. Northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Saturday
A 20 percent chance of snow after 1pm. Mostly cloudy, with a high near 40. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Snow. The snow could be heavy at times. Low around 26. East wind 5 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of 7 to 11 inches possible.
Sunday
Snow. The snow could be heavy at times. Patchy blowing snow after 9am. High near 32. Breezy, with a northeast wind 15 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 100%.
Sunday Night
Snow likely, mainly before 1am. The snow could be heavy at times. Cloudy, with a low around 10. Blustery, with a north wind around 22 mph, with gusts as high as 38 mph. Chance of precipitation is 70%.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 19. Blustery, with a northwest wind 20 to 23 mph, with gusts as high as 34 mph.
Monday Night
Partly cloudy, with a low around -4. Northwest wind 7 to 15 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 22. West wind 5 to 7 mph.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 3. Light and variable wind.
Wednesday
A slight chance of rain and snow. Partly sunny, with a high near 35. South wind 3 to 6 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 18. Calm wind becoming south around 5 mph after midnight.
Thursday
Mostly cloudy, with a high near 46. South wind 5 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Tomah WI
 43.99°N 90.51°W
Last Update:
2:41 pm CDT Mar 12, 2026
Forecast Valid:
3pm CDT Mar 12, 2026-6pm CDT Mar 19, 2026
 
Forecast Discussion
 
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