Winter Storm Impacts This Afternoon - Monday Morning

A strong winter storm moves through the region this afternoon through Monday morning. The combination of moderate to heavy snow, strong northwest winds, and falling temperatures will lead to dangerous travel across much of the area, including blizzard conditions west of the Mississippi River. Read More >

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Light Rain Fog/Mist

36°F

2°C

Humidity 96%
Wind Speed Calm
Barometer 29.52 in (1000.6 mb)
Dewpoint 35°F (2°C)
Visibility 2.50 mi
Last update 28 Dec 12:55 pm CST
Extended Forecast for

Sparta WI

Winter Storm Warning December 28, 03:00pm until December 29, 12:00pm
Click here for hazard details and duration
Winter Storm Warning
  • This Afternoon

    This Afternoon: Snow, possibly mixed with rain, becoming all snow after 4pm. The snow could be heavy at times.  High near 38. Breezy, with a west wind 5 to 10 mph increasing to 11 to 16 mph. Winds could gust as high as 31 mph.  Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 38 °F

    Rain/Snow and
    Breezy

  • Tonight

    Tonight: Snow, mainly before 4am. The snow could be heavy at times.  Widespread blowing snow, mainly before 4am. Low around 11. Wind chill values as low as zero. Blustery, with a west wind 14 to 16 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 11 °F

    Heavy Snow
    and Blowing
    Snow

  • Monday

    Monday: Patchy blowing snow between 10am and noon. Partly sunny, with a steady temperature around 14. Wind chill values as low as -5. Blustery, with a northwest wind 10 to 18 mph, with gusts as high as 32 mph.

    High: 14 °F

    Blustery.
    Patchy
    Blowing Snow
    then Partly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 2. Northwest wind 5 to 8 mph becoming calm  after midnight. Winds could gust as high as 21 mph.

    Low: 2 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly after noon.  Mostly cloudy, with a high near 29. Calm wind becoming west 5 to 7 mph in the morning. Winds could gust as high as 18 mph.

    High: 29 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 14. Northwest wind around 7 mph, with gusts as high as 20 mph.

    Low: 14 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of snow after noon.  Mostly cloudy, with a high near 23. Northwest wind 5 to 7 mph, with gusts as high as 20 mph.

    High: 23 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow before midnight.  Partly cloudy, with a low around -1. Light northwest wind.

    Low: -1 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • New Year's Day

    New Year's Day: Sunny, with a high near 12. Calm wind becoming west around 6 mph in the morning.

    High: 12 °F

    Sunny

Detailed Forecast

This Afternoon
Snow, possibly mixed with rain, becoming all snow after 4pm. The snow could be heavy at times. High near 38. Breezy, with a west wind 5 to 10 mph increasing to 11 to 16 mph. Winds could gust as high as 31 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Snow, mainly before 4am. The snow could be heavy at times. Widespread blowing snow, mainly before 4am. Low around 11. Wind chill values as low as zero. Blustery, with a west wind 14 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Monday
Patchy blowing snow between 10am and noon. Partly sunny, with a steady temperature around 14. Wind chill values as low as -5. Blustery, with a northwest wind 10 to 18 mph, with gusts as high as 32 mph.
Monday Night
Partly cloudy, with a low around 2. Northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 21 mph.
Tuesday
A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 29. Calm wind becoming west 5 to 7 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 14. Northwest wind around 7 mph, with gusts as high as 20 mph.
Wednesday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 23. Northwest wind 5 to 7 mph, with gusts as high as 20 mph.
Wednesday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around -1. Light northwest wind.
New Year's Day
Sunny, with a high near 12. Calm wind becoming west around 6 mph in the morning.
Thursday Night
Partly cloudy, with a low around 1. Light west wind.
Friday
Partly sunny, with a high near 20. Calm wind becoming west around 5 mph.
Friday Night
Mostly cloudy, with a low around 5. Calm wind.
Saturday
Mostly cloudy, with a high near 23. Calm wind becoming west around 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
12:41 pm CST Dec 28, 2025
1pm CST Dec 28, 2025-6pm CST Jan 3, 2026
 
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Additional Resources

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