Marine Weather Net

Stonington ME to Port Clyde ME Marine Forecast


TODAY

W
WINDS
10
KNOTS

TONIGHT

NW
WINDS
5 - 10
KNOTS

SAT

NW
WINDS
5 - 10
KNOTS

SAT NIGHT

W
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
ANZ150 Forecast Issued: 645 AM EDT Fri Aug 14 2026

Today...W Winds Around 10 Kt. Seas Around 2 Ft. Wave Detail: W 2 Ft At 5 Seconds.
Tonight...Nw Winds 5 To 10 Kt. Seas Around 2 Ft. Wave Detail: Nw 2 Ft At 4 Seconds.
Sat...Nw Winds 5 To 10 Kt, Becoming Sw In The Afternoon. Seas Around 2 Ft. Wave Detail: Nw 2 Ft At 3 Seconds.
Sat Night...W Winds 5 To 10 Kt, Becoming Nw After Midnight. Seas Around 2 Ft.
Sun...Nw Winds Around 5 Kt, Becoming S In The Afternoon. Seas Around 2 Ft.
Sun Night...S Winds 10 To 15 Kt, Increasing To 15 To 20 Kt After Midnight. Seas 2 To 3 Ft. Wave Detail: S 3 Ft At 5 Seconds. A Chance Of Showers In The Evening, Then Showers Likely After Midnight.
Mon...S Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas Around 3 Ft. Showers.
Mon Night...Se Winds 10 To 15 Kt, Becoming N 5 To 10 Kt After Midnight. Seas 2 To 3 Ft. A Chance Of Showers In The Evening.
Tue...N Winds 5 To 10 Kt, Becoming W In The Afternoon. Seas 2 To 4 Ft.
Tue Night...Sw Winds 5 To 10 Kt. Seas 3 To 4 Ft.
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Area Forecast Discussion
...UPDATED National Weather Service Gray ME
645am EDT Fri August 14 2026

.WHAT HAS CHANGED... No significant changes since the previous forecast cycle.

.KEY MESSAGES... 1. Mostly dry weather with seasonal temperatures is expected through Saturday as high pressure builds toward New England.

2. An unsettled pattern returns with rain Sunday night into Monday morning, with shower and thunderstorm chances returning for the latter half of the week. Seasonable temperatures are expected through the period.

KEY MESSAGE 1 DESCRIPTION... Surface high pressure will build to our southwest today as we remain on the western periphery of an H5 s/wv trough axis. Mainly sunny skies during the morning will become partly cloudy during this afternoon as some weak daytime instability develops. Other than perhaps an isolated shower/rumble of thunder across SW NH it will be a dry day with high temperatures near 70 across the north with upper 70s to lower 80s south. NW wind gusts up to 25-30 mph will be possible at times.

The combination of weakening winds, clear skies, and relatively low dew points will allow for radiational cooling tonight. Forecast lows range from the middle 40s across some interior valleys with 50s in most other locations. Valley fog is possible late through early Saturday morning.

High pressure will allow for continued tranquil weather on Saturday with partly to mostly sunny skies and high temperatures ranging from around 70 across the north to near 80 south. Radiational cooling is then likely again Saturday night with low temperatures into the 40s and 50s.

KEY MESSAGE 2 DESCRIPTION... High pressure will begin to exit to our east on Sunday as closed low pressure moves across the Great Lakes while spreading a warm front northward across the Delmarva. This area of low pressure is then forecast to move northeastward Sunday night into Monday with a weak coastal low possibly developing near or over the Gulf of ME. After a dry and seasonable day on Sunday, rain chances will increase Sunday night into at least Monday morning with scattered showers possibly continuing into the afternoon hours. Latest ensemble mean Quantitative Precipitation Forecast shows generally between 0.50-1.00" of rainfall during this period but there are some individual members with higher totals. Given the ongoing dry conditions across much of the region, this will largely be beneficial rainfall but cannot rule out some minor issues if heavy rainfall falls in a short period of time.

Mainly dry conditions look to return for Tuesday into Wednesday as low pressure departs to our north and east. Temperatures will remain near seasonable averages. Showery weather may return late week as another disturbance approaches from the west.

Marine
Winds stay out of the northwest through tonight but could be more westerly at times for a period this afternoon. Winds and seas will remain below SCA (Small Craft Advisory) criteria though. Low pressure will move up the St Lawrence Valley Sunday night and Monday morning with a warm front passing over the waters Monday. An uptick in southerly winds is expected, but may fall just short of SCA (Small Craft Advisory) criteria for the coastal waters. High pressure then returns over the waters for the middle of the week.

NOAA Gray/Portland ME Office - Watches - Warnings - Advisories
ME...None. NH...None.

Marine
None.