Marine Weather and Tide Forecast for Wiscasset, ME
 | Sunrise 6:17 AM Sunset 5:26 PM Moonrise 3:14 PM Moonset 5:58 AM |
Marine Forecasts
NOTE: Zones were updated 3/20/2025. If your report is out of date, please click Edit
ANZ152 Coastal Waters From Port Clyde, Me To Cape Elizabeth, Me Out 25 Nm- 707 Am Est Sat Feb 28 2026
.small craft advisory in effect through this evening - .
Today - S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave detail: S 5 ft at 5 seconds and S 3 ft at 10 seconds.
Tonight - W winds 10 to 15 kt, becoming N after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave detail: S 5 ft at 7 seconds.
Sun - NE winds 10 to 15 kt, becoming N 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Wave detail: se 3 ft at 8 seconds and ne 2 ft at 4 seconds. A chance of snow in the morning, then snow likely in the afternoon. Vsby 1 nm or less.
Sun night - N winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. Wave detail: N 4 ft at 4 seconds and se 2 ft at 7 seconds. A chance of snow in the evening. Moderate freezing spray. Vsby 1 nm or less in the evening.
Mon - NW winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 3 to 5 ft, subsiding to 2 to 3 ft in the afternoon. Wave detail: N 3 ft at 4 seconds and se 2 ft at 8 seconds, becoming nw 2 ft at 3 seconds and ne 2 ft at 4 seconds. Moderate freezing spray.
Mon night - W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave detail: W 2 ft at 3 seconds and se 2 ft at 8 seconds. Light freezing spray.
Tue - SW winds 25 to 30 kt with gusts up to 40 kt. Seas 3 to 5 ft, building to 5 to 7 ft in the afternoon. Light freezing spray in the morning. A chance of snow in the afternoon with vsby 1 nm or less.
Tue night - SW winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 8 ft. Rain and snow. Vsby 1 nm or less.
Wed - NW winds 15 to 20 kt with gusts up to 35 kt, becoming W 5 to 10 kt with gusts up to 20 kt in the afternoon. Seas 4 to 6 ft, subsiding to 3 to 4 ft in the afternoon. A chance of rain and snow in the morning with vsby 1 nm or less.
Wed night - SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.
ANZ100 707 Am Est Sat Feb 28 2026
Synopsis for stonington me to merrimack river ma out to 25 nm - An approaching cold front will increase southwest winds beginning today, and some wind gusts near 25 knots and seas near 5 feet are possible outside of the bays through Sunday. Winds shift westerly behind the front and may be briefly gusty before diminishing Monday under strong high pressure.
7 Day Forecast for Marine Location Near Wiscasset, ME
NEW! Add second zone forecast
| Cross River entrance Click for Map Sat -- 01:54 AM EST 0.88 feet Low Tide Sat -- 04:57 AM EST Moonset Sat -- 06:17 AM EST Sunrise Sat -- 08:19 AM EST 9.88 feet High Tide Sat -- 02:14 PM EST Moonrise Sat -- 02:45 PM EST -0.26 feet Low Tide Sat -- 05:25 PM EST Sunset Sat -- 09:04 PM EST 8.81 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Cross River entrance, Sheepscot River, Maine, Tide feet
| 12 am |
| 2.6 |
| 1 am |
| 1.3 |
| 2 am |
| 0.9 |
| 3 am |
| 1.5 |
| 4 am |
| 3.1 |
| 5 am |
| 5.3 |
| 6 am |
| 7.5 |
| 7 am |
| 9 |
| 8 am |
| 9.8 |
| 9 am |
| 9.6 |
| 10 am |
| 8.3 |
| 11 am |
| 6.1 |
| 12 pm |
| 3.6 |
| 1 pm |
| 1.4 |
| 2 pm |
| 0.1 |
| 3 pm |
| -0.2 |
| 4 pm |
| 0.6 |
| 5 pm |
| 2.5 |
| 6 pm |
| 4.7 |
| 7 pm |
| 6.8 |
| 8 pm |
| 8.2 |
| 9 pm |
| 8.8 |
| 10 pm |
| 8.3 |
| 11 pm |
| 6.8 |
| Sheepscot River Click for Map Flood direction 5 true Ebb direction 200 true Sat -- 03:08 AM EST 0.00 knots Slack Sat -- 04:57 AM EST Moonset Sat -- 05:32 AM EST 0.80 knots Max Flood Sat -- 06:17 AM EST Sunrise Sat -- 08:45 AM EST -0.01 knots Slack Sat -- 12:39 PM EST -1.10 knots Max Ebb Sat -- 02:14 PM EST Moonrise Sat -- 04:09 PM EST 0.00 knots Slack Sat -- 05:25 PM EST Sunset Sat -- 06:44 PM EST 0.77 knots Max Flood Sat -- 09:19 PM EST -0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |
Sheepscot River, off Barter Island, Maine Current, knots
| 12 am |
| -0.9 |
| 1 am |
| -0.8 |
| 2 am |
| -0.6 |
| 3 am |
| -0.1 |
| 4 am |
| 0.5 |
| 5 am |
| 0.8 |
| 6 am |
| 0.8 |
| 7 am |
| 0.7 |
| 8 am |
| 0.4 |
| 9 am |
| -0.1 |
| 10 am |
| -0.6 |
| 11 am |
| -0.9 |
| 12 pm |
| -1.1 |
| 1 pm |
| -1.1 |
| 2 pm |
| -1 |
| 3 pm |
| -0.7 |
| 4 pm |
| -0.1 |
| 5 pm |
| 0.4 |
| 6 pm |
| 0.7 |
| 7 pm |
| 0.8 |
| 8 pm |
| 0.6 |
| 9 pm |
| 0.2 |
| 10 pm |
| -0.4 |
| 11 pm |
| -0.8 |
Area Discussion for Gray/Portland, ME
Hide HelpNOTE: mouseover dotted underlined text for definition
FXUS61 KGYX 281111 AAA AFDGYX
Area Forecast Discussion...UPDATED National Weather Service Gray ME 611 AM EST Sat Feb 28 2026
WHAT HAS CHANGED
Adjusted the near term forecast to observational trends with no significant changes. Much of the area stayed clear overnight leading to some radiational cooling, but despite a bit of a colder start temperatures are still expected to quickly rise through the morning, with widespread 40s for the afternoon. Also of note, onshore flow has led to some lower clouds this morning and isolated patchy fog, but this should be short lived as temperatures begin to rise and mix them out.
KEY MESSAGES
1. Warmer temperatures in store today, followed by colder weather and a little light snow on Sunday.
2. Low pressure brings the next chance for widespread precip late Tuesday and Wednesday.
DISCUSSION
KEY MESSAGE 1 DESCRIPTION...
A warm front will move through the forecast area prior to 12z this morning. The front will come with little fanfare other than some clouds, particularly in the mountains along with a little bit of fog elsewhere. The end result will be warmer temperatures with highs in the 40s, possibly as high as 50 degrees in the Merrimack Valley of NH. As far as precipitation goes, a brief period of showery weather will be possible, mainly across northern NH. Winds will become a bit gusty this afternoon, with southerly gusts around 25 MPH.
Much colder air is expected in the wake of a cold front later Saturday night and Sunday. At the same time a short wave trough will traverse northern New England on Sunday. Enough moisture and lift will be present to aid in a little light snow which should not amount to more than two inches at any given location.
KEY MESSAGE 2 DESCRIPTION...
The Arctic high pressure system crosses through New England early in the week. It leaves behind a cold air mass as low pressure rides eastward into New England. Models continue to bring moisture into New England with this system, but there remains some discrepancy on how much moisture reaches into New England, and where different precip types will fall.
Warm air will try to make a northward push with the system, but will have the cold airmass stubbornly in place ahead of it.
This it likely to lead to snow north, rain south, and a wintry mix in between. This system will be different from the all snow systems we've become accustomed to lately, and much uncertainty remains on where these different precip types will set up.
Trends from past systems this winter would hint at the colder air winning out more, but this would also come with a northern edge into our forecast area should most of the precip that does fall fall as snow. So we'll continue to monitor the trends as we get closer to the system.
Another wave of low pressure is then possible late in the week, and would likely have even more warm air to work with. However, we'll approach these systems one at time for now.
AVIATION /12Z SATURDAY THROUGH WEDNESDAY/
Through 06z Sunday... An approaching cold front may bring scattered rain and snow showers to the mtns today. Local MVFR or lower conditions are possible, mainly at HIE. Otherwise, VFR conditions are expected with gusty southerly winds.
Outlook...
Sunday: A weak low pressure system will pass across northern New England with a little light snow which many bring cigs and vsbys down to IFR for a relatively short periods of time.
Sunday night thru Monday Night: Improving to VFR in the evening and overnight as high pressure settles overhead.
Tuesday and Tuesday Night: MVFR to IFR ceilings possible by late Tuesday with the chance of SN reducing visibility.
Wednesday: IFR and mixed precip possible.
Wednesday Night - Thursday: Some improvement in conditions, but MVFR still possible.
Thursday night - Friday: More IFR possible with snow and mixed precip.
MARINE
Southwest winds will increase early this morning ahead of an approaching cold front. Warm advection over cold ocean waters will struggle to mix down the strongest wind gusts, but a period of SCA gusts is expected today. Winds and seas will begin to diminish tonight. However, SCA conditions are once again expected Sunday night into early Monday.
Arctic high pressure crosses the waters during the day on Monday, with low pressure riding east across the waters late Tuesday and early Wednesday. SCA to low end gales are possible in southerly flow with this system. Weak high pressure then crosses on Thursday.
GYX WATCHES/WARNINGS/ADVISORIES
ME...None.
NH...None.
MARINE...Small Craft Advisory until 9 PM EST this evening for ANZ150- 152-154.
Small Craft Advisory until 9 PM EST this evening for ANZ151- 153.
Area Forecast Discussion...UPDATED National Weather Service Gray ME 611 AM EST Sat Feb 28 2026
WHAT HAS CHANGED
Adjusted the near term forecast to observational trends with no significant changes. Much of the area stayed clear overnight leading to some radiational cooling, but despite a bit of a colder start temperatures are still expected to quickly rise through the morning, with widespread 40s for the afternoon. Also of note, onshore flow has led to some lower clouds this morning and isolated patchy fog, but this should be short lived as temperatures begin to rise and mix them out.
KEY MESSAGES
1. Warmer temperatures in store today, followed by colder weather and a little light snow on Sunday.
2. Low pressure brings the next chance for widespread precip late Tuesday and Wednesday.
DISCUSSION
KEY MESSAGE 1 DESCRIPTION...
A warm front will move through the forecast area prior to 12z this morning. The front will come with little fanfare other than some clouds, particularly in the mountains along with a little bit of fog elsewhere. The end result will be warmer temperatures with highs in the 40s, possibly as high as 50 degrees in the Merrimack Valley of NH. As far as precipitation goes, a brief period of showery weather will be possible, mainly across northern NH. Winds will become a bit gusty this afternoon, with southerly gusts around 25 MPH.
Much colder air is expected in the wake of a cold front later Saturday night and Sunday. At the same time a short wave trough will traverse northern New England on Sunday. Enough moisture and lift will be present to aid in a little light snow which should not amount to more than two inches at any given location.
KEY MESSAGE 2 DESCRIPTION...
The Arctic high pressure system crosses through New England early in the week. It leaves behind a cold air mass as low pressure rides eastward into New England. Models continue to bring moisture into New England with this system, but there remains some discrepancy on how much moisture reaches into New England, and where different precip types will fall.
Warm air will try to make a northward push with the system, but will have the cold airmass stubbornly in place ahead of it.
This it likely to lead to snow north, rain south, and a wintry mix in between. This system will be different from the all snow systems we've become accustomed to lately, and much uncertainty remains on where these different precip types will set up.
Trends from past systems this winter would hint at the colder air winning out more, but this would also come with a northern edge into our forecast area should most of the precip that does fall fall as snow. So we'll continue to monitor the trends as we get closer to the system.
Another wave of low pressure is then possible late in the week, and would likely have even more warm air to work with. However, we'll approach these systems one at time for now.
AVIATION /12Z SATURDAY THROUGH WEDNESDAY/
Through 06z Sunday... An approaching cold front may bring scattered rain and snow showers to the mtns today. Local MVFR or lower conditions are possible, mainly at HIE. Otherwise, VFR conditions are expected with gusty southerly winds.
Outlook...
Sunday: A weak low pressure system will pass across northern New England with a little light snow which many bring cigs and vsbys down to IFR for a relatively short periods of time.
Sunday night thru Monday Night: Improving to VFR in the evening and overnight as high pressure settles overhead.
Tuesday and Tuesday Night: MVFR to IFR ceilings possible by late Tuesday with the chance of SN reducing visibility.
Wednesday: IFR and mixed precip possible.
Wednesday Night - Thursday: Some improvement in conditions, but MVFR still possible.
Thursday night - Friday: More IFR possible with snow and mixed precip.
MARINE
Southwest winds will increase early this morning ahead of an approaching cold front. Warm advection over cold ocean waters will struggle to mix down the strongest wind gusts, but a period of SCA gusts is expected today. Winds and seas will begin to diminish tonight. However, SCA conditions are once again expected Sunday night into early Monday.
Arctic high pressure crosses the waters during the day on Monday, with low pressure riding east across the waters late Tuesday and early Wednesday. SCA to low end gales are possible in southerly flow with this system. Weak high pressure then crosses on Thursday.
GYX WATCHES/WARNINGS/ADVISORIES
ME...None.
NH...None.
MARINE...Small Craft Advisory until 9 PM EST this evening for ANZ150- 152-154.
Small Craft Advisory until 9 PM EST this evening for ANZ151- 153.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| CASM1 - 8418150 - Portland, ME | 36 mi | 43 min | SSW 15G | 34°F | 30.08 | |||
| 44007 - PORTLAND 12 NM Southeast of Portland,ME | 37 mi | 31 min | S 19G | 37°F | 36°F | 30.10 | 30°F | |
| 44033 - Buoy F0103 - West Penobscot Bay | 37 mi | 151 min | S 14G | 37°F | ||||
| MISM1 - Matinicus Rock, ME | 44 mi | 21 min | S 20G | 40°F | 30.14 | 34°F |
Wind History for Portland, ME
toggle option: (graph/table)
Link to 1 hour of 5 minute data for KIWI
Terminal Aerodrome Forecast (TAF) for KIWI
Wind History Graph: IWI
(wind in knots)
GEOS Local Image of north east
Edit Hide
Portland, ME,
NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE