Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

Marquette, MI Local Forecast Office

3NM N Copper Harbor MI

Marine Point Forecast

[NOTICE]

Today
High: 37 °F
Light Wind
1ft
Tonight
Low: 34 °F
Light Wind
< 1ft
Wednesday
High: 37 °F
Light Wind
< 1ft
Wednesday Night
Low: 35 °F
Light Wind
< 1ft
Thursday
High: 40 °F
NNW 10kt
< 1ft
Thursday Night
Low: 36 °F
E 10kt
1-2ft
Friday
High: 44 °F
ESE 15kt
2-3ft
Friday Night
Low: 35 °F
SE 25kt
3-4ft
Saturday
High: 41 °F
W 30kt
10ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:12 am CDT Apr 14, 2026
Forecast Valid: 11am CDT Apr 14, 2026-6pm CDT Apr 20, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds 5 kt or less. A slight chance of showers after 4pm. Patchy dense fog. Waves around 1 ft.

Tonight

Variable winds 5 kt or less. Areas of dense fog. Waves 1 ft or less.

Wednesday

Variable winds 5 kt or less. Patchy fog before 9am. Waves 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. A slight chance of showers. Waves 1 ft or less.

Thursday

NNW wind 5 to 10 kt becoming NE in the afternoon. A slight chance of showers. Waves 1 ft or less.

Thursday Night

E wind 5 to 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 to 2 ft.

Friday

ESE wind 10 to 15 kt, with gusts as high as 25 kt. Partly sunny. Waves 2 to 3 ft.

Friday Night

SE wind 15 to 25 kt, with gusts as high as 35 kt. Showers. Waves 3 to 4 ft.

Saturday

W wind 25 to 30 kt, with gusts as high as 35 kt. Rain showers likely before 10am, then rain and snow showers likely. Waves 5 ft building to 10 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.