Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East; Severe Storm Threat in the Gulf States Sunday

A significant winter storm is underway, bringing widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Extremely cold air will follow, prolonging dangerous travel and infrastructure impacts into next week. Severe thunderstorms may produce damaging gusts and tornadoes across the eastern Gulf Coast states Sunday morning and afternoon. Read More >

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

-19°F

-28°C

Humidity 75%
Wind Speed Calm
Barometer 30.36 in (1031.8 mb)
Dewpoint -24°F (-31°C)
Visibility 10.00 mi
Last update 25 Jan 3:55 am CST
Extended Forecast for

Sparta WI

Cold Weather Advisory January 26, 12:00am until January 26, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 6. Wind chill values as low as -13. Calm wind becoming northwest around 5 mph.

    High: 6 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around -13. Light northwest wind.

    Low: -13 °F

    Partly Cloudy

  • Monday

    Monday: Increasing clouds, with a high near 14. Wind chill values as low as -22. Light and variable wind becoming southwest 5 to 7 mph in the morning. Winds could gust as high as 18 mph.

    High: 14 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 2. Wind chill values as low as -7. South wind 6 to 8 mph becoming northwest after midnight. Winds could gust as high as 21 mph.

    Low: 2 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 11. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 11 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -3. West wind around 5 mph becoming calm  in the evening.

    Low: -3 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 11. Calm wind becoming northwest 5 to 7 mph in the morning.

    High: 11 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -7. Light northwest wind.

    Low: -7 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 13. Light northwest wind.

    High: 13 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 6. Wind chill values as low as -13. Calm wind becoming northwest around 5 mph.
Tonight
Partly cloudy, with a low around -13. Light northwest wind.
Monday
Increasing clouds, with a high near 14. Wind chill values as low as -22. Light and variable wind becoming southwest 5 to 7 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 2. Wind chill values as low as -7. South wind 6 to 8 mph becoming northwest after midnight. Winds could gust as high as 21 mph.
Tuesday
Partly sunny, with a high near 11. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around -3. West wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 11. Calm wind becoming northwest 5 to 7 mph in the morning.
Wednesday Night
Partly cloudy, with a low around -7. Light northwest wind.
Thursday
Mostly sunny, with a high near 13. Light northwest wind.
Thursday Night
Partly cloudy, with a low around -3. Calm wind.
Friday
Mostly sunny, with a high near 16. Light northwest wind.
Friday Night
Partly cloudy, with a low around -1. Light northwest wind.
Saturday
Mostly sunny, with a high near 21. Light northwest wind.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
3:16 am CST Jan 25, 2026
4am CST Jan 25, 2026-6pm CST Jan 31, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database