Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

Copper Harbor (KP59)

Lat: 47.47° N Lon: 87.88° W Elev: 623 ft.

35°F

2°C

Humidity 85%
Wind Speed SW 9 G 21 mph
Barometer 29.87 in (1012.6 mb)
Dewpoint 31°F (-1°C)
Visibility NA
Wind Chill28°F (-2°C)
Last update 27 Dec 10:51 am EST
Detailed forecast for

Keweenaw County

Rest Of Today
Cloudy. A chance of rain showers this afternoon. Near steady temperature in the mid 30s. South winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 50 percent.
Tonight
Cloudy with a 50 percent chance of rain showers. Lows around 32. South winds 5 to 10 mph with gusts up to 25 mph.
Sunday
A chance of rain showers, freezing rain and snow showers in the morning, then snow and rain in the afternoon. Cloudy. Snow accumulation around an inch. Minor ice accumulation possible. Highs around 35. East winds 5 to 10 mph, increasing to northeast 10 to 20 mph with gusts up to 35 mph in the afternoon. Chance of precipitation 90 percent.
Sunday Night
Very windy. Snow. Blowing snow. Heavy freezing spray after midnight. Snow may be heavy at times. Visibility one quarter mile or less at times. Heavy snow accumulation. Lows 10 to 15. North winds 25 to 35 mph with gusts up to 65 mph. Chance of snow 100 percent.
Monday
Very windy and colder. Snow in the morning, then a chance of snow in the afternoon. Blowing snow in the morning. Heavy freezing spray. Patchy blowing snow in the afternoon. Cloudy. Visibility one quarter mile or less at times. Highs 16 to 21. Temperature falling to between 10 and 15 in the afternoon. North winds 25 to 35 mph with gusts up to 65 mph. Chance of snow 90 percent.
Monday Night
Breezy, cloudy. Heavy freezing spray in the evening. Patchy blowing snow. Lows around 5 above inland to around 11 at the shore.
Tuesday
A chance of snow showers in the morning, then snow showers likely in the afternoon. Cloudy. Highs 18 to 23. Chance of snow 70 percent.
Tuesday Night And Wednesday
Colder. Cloudy with a 50 percent chance of snow showers. Heavy freezing spray. Lows 2 to 7 above. Highs around 7 above inland to around 14 at the shore.
Wednesday Night
Cloudy with a 50 percent chance of snow showers. Heavy freezing spray. Lows around 3 below inland to around 3 above at the shore.
New Years Day
Cloudy with a 40 percent chance of snow showers. Heavy freezing spray. Highs around 5 above inland to around 11 at the shore.
Thursday Night
A chance of snow showers in the evening. Cloudy. Lows around 2 below inland to around 5 above at the shore. Chance of snow 30 percent.
Friday
Cloudy. Highs 12 to 17.



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1122 AM EST Sat Dec 27 2025
 
 

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