Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Hazardous Weather Conditions

For More Weather Information:

Marquette, MI Local Forecast Office

8NM E Copper Harbor MI

Marine Point Forecast

[NOTICE]

Sunday
High: 40 °F
SSE 20kt
4-5ft

Small Craft Advisory
Sunday Night
Low: 35 °F
S 15kt
2-3ft

Small Craft Advisory
Monday
High: 38 °F
WNW 10kt
1-2ft
Monday Night
Low: 34 °F
E 15kt
< 1ft
Tuesday
High: 36 °F
NE 10kt
2ft
Tuesday Night
Low: 34 °F
Light Wind
1-3ft
Wednesday
High: 38 °F
E 10kt
2-4ft
Wednesday Night
Low: 35 °F
ESE 15kt
1ft
Thursday
High: 41 °F
ENE 15kt
1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:22 am CDT Apr 12, 2026
Forecast Valid: 2am CDT Apr 12, 2026-6pm CDT Apr 18, 2026

View Nearby Observations

Detailed Forecast

Sunday

SSE wind 15 to 20 kt, with gusts as high as 30 kt. Showers likely, with thunderstorms also possible after 10am. Waves 4 to 5 ft.

Sunday Night

S wind around 15 kt becoming WNW after midnight. A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Waves 2 to 3 ft.

Monday

WNW wind 5 to 10 kt becoming NNE in the afternoon. Partly sunny. Waves 1 to 2 ft.

Monday Night

E wind 5 to 15 kt. Showers likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then showers likely after 1am. Waves 1 ft or less.

Tuesday

NE wind around 10 kt. A slight chance of showers before 1pm. Waves around 2 ft.

Tuesday Night

Variable winds 5 kt or less. Mostly cloudy. Waves 1 to 3 ft.

Wednesday

E wind 5 to 10 kt. A chance of showers. Waves 2 to 4 ft.

Wednesday Night

ESE wind 10 to 15 kt. A chance of showers. Waves around 1 ft.

Thursday

ENE wind 10 to 15 kt becoming N in the afternoon. Partly sunny. Waves around 1 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.