Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

-3°F

-19°C

Humidity 48%
Wind Speed Calm
Barometer 30.60 in (1040.3 mb)
Dewpoint -18°F (-28°C)
Visibility 10.00 mi
Last update 24 Jan 12:55 pm CST
Extended Forecast for

Sparta WI

  • This Afternoon

    This Afternoon: Mostly sunny and cold, with a high near 1. Calm wind.

    High: 1 °F

    Cold

  • Tonight

    Tonight: Mostly cloudy, with a low around -13. Calm wind.

    Low: -13 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 7. Wind chill values as low as -21. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 7 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -14. Wind chill values as low as -22. Light northwest wind.

    Low: -14 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 12. Light and variable wind becoming west 5 to 8 mph in the morning. Winds could gust as high as 18 mph.

    High: 12 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 2. Southwest 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 12. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 12 °F

    Partly Sunny

  • Tuesday Night

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

    Low: -3 °F

    Mostly 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

Detailed Forecast

This Afternoon
Mostly sunny and cold, with a high near 1. Calm wind.
Tonight
Mostly cloudy, with a low around -13. Calm wind.
Sunday
Mostly sunny, with a high near 7. Wind chill values as low as -21. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around -14. Wind chill values as low as -22. Light northwest wind.
Monday
Mostly sunny, with a high near 12. Light and variable wind becoming west 5 to 8 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 2. Southwest wind 6 to 8 mph becoming northwest after midnight. Winds could gust as high as 21 mph.
Tuesday
Partly sunny, with a high near 12. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around -3. Northwest 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 -4. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 14. Calm wind becoming northwest around 5 mph.
Thursday Night
Mostly clear, with a low around -4. Calm wind.
Friday
Mostly sunny, with a high near 17. Light northwest wind.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
12:56 pm CST Jan 24, 2026
1pm CST Jan 24, 2026-6pm CST Jan 30, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database