Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Copper Harbor (KP59)

Lat: 47.47°NLon: 87.88°WElev: 623ft.

36°F

2°C

Humidity 100%
Wind Speed N 3 mph
Barometer 29.73 in (1007.5 mb)
Dewpoint 36°F (2°C)
Visibility NA
Last update 15 Apr 2:51 am EDT
Extended Forecast for

Copper Harbor MI

Flood Watch April 15, 03:16am until April 17, 02:00am
Dense Fog Advisory April 15, 03:16am until April 15, 10:00am
Click here for hazard details and duration
Flood Watch
Dense Fog Advisory
  •  
    Flood Watch April 15, 03:16am until April 17, 02:00am
    Dense Fog Advisory April 15, 03:16am until April 15, 10:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 34 °F

    Dense Fog

  • Wednesday

    Wednesday: Areas of dense fog before 2pm.  Otherwise, mostly cloudy, with a high near 41. Northwest wind around 5 mph becoming calm.

    High: 41 °F

    Areas Dense
    Fog

  • Wednesday Night

    Wednesday Night: Patchy fog after 10pm.  Otherwise, mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 43. Calm wind becoming east around 5 mph.

    High: 43 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 35. Southeast wind around 5 mph.

    Low: 35 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Showers, mainly after 8pm.  Low around 32. Chance of precipitation is 90%.

    Low: 32 °F

    Showers

  • Saturday

    Saturday: Rain likely, possibly mixed with snow showers before 2pm, then a chance of snow showers.  Mostly cloudy, with a high near 36.

    High: 36 °F

    Rain/Snow
    Likely

Detailed Forecast

Overnight
Widespread dense fog, mainly before 5am. Otherwise, mostly cloudy, with a low around 34. Calm wind.
Wednesday
Areas of dense fog before 2pm. Otherwise, mostly cloudy, with a high near 41. Northwest wind around 5 mph becoming calm.
Wednesday Night
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 34. Calm wind.
Thursday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 43. Calm wind becoming east around 5 mph.
Thursday Night
Partly cloudy, with a low around 35. Southeast wind around 5 mph.
Friday
Mostly cloudy, with a high near 50.
Friday Night
Showers, mainly after 8pm. Low around 32. Chance of precipitation is 90%.
Saturday
Rain likely, possibly mixed with snow showers before 2pm, then a chance of snow showers. Mostly cloudy, with a high near 36.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 25. Blustery.
Sunday
Mostly cloudy, with a high near 34. Breezy.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Mostly sunny, with a high near 46.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Copper Harbor MI
 47.46°N 87.89°W (Elev. 719 ft)
3:02 am EDT Apr 15, 2026
3am EDT Apr 15, 2026-6pm EDT Apr 21, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database