Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Current conditions at

Copper Harbor (KP59)

Lat: 47.47°NLon: 87.88°WElev: 623ft.

41°F

5°C

Humidity 89%
Wind Speed NA
Barometer 29.78 in (1009.2 mb)
Dewpoint 38°F (3°C)
Visibility NA
Last update 16 Apr 10:51 am EDT
Extended Forecast for

4 Miles W Copper Harbor MI

Flood Watch April 16, 10:59am until April 17, 02:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch April 16, 10:59am until April 17, 02:00am

    NOW until 2:00am Fri

    Flood Watch

  • Today

    High: 42 °F

    Areas Fog

  • Tonight

    Tonight: Patchy fog after 9pm.  Otherwise, mostly cloudy, with a low around 34. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Patchy Fog

  • Friday

    Friday: A 20 percent chance of showers after 2pm.  Patchy fog before 9am.  Otherwise, partly sunny, with a high near 51. South wind around 15 mph, with gusts as high as 25 mph.

    High: 51 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms.  Low around 28. South wind around 15 mph becoming west after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 28 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 8am.  Mostly cloudy, with a high near 33. Breezy, with a west wind around 20 mph, with gusts as high as 35 mph.

    High: 33 °F

    Breezy.
    Chance
    Showers then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Today
Areas of fog before 3pm. Otherwise, partly sunny, with a high near 42. Calm wind becoming north around 5 mph.
Tonight
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 34. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
A 20 percent chance of showers after 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 51. South wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Showers and thunderstorms. Low around 28. South wind around 15 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A 30 percent chance of showers before 8am. Mostly cloudy, with a high near 33. Breezy, with a west wind around 20 mph, with gusts as high as 35 mph.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Partly sunny, with a high near 33.
Sunday Night
Mostly clear, with a low around 27.
Monday
Sunny, with a high near 42.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Mostly sunny, with a high near 40.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Copper Harbor MI
 47.47°N 87.98°W (Elev. 889 ft)
10:52 am EDT Apr 16, 2026
10am EDT Apr 16, 2026-6pm EDT Apr 22, 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