Southwest Harbor, ME Weather Forecast and Current Conditions

Day	Sky	High / Low	Precip	Wind	Humidity
Thu Nov 12	Showers Late Close Hourly	-º / 35º	34%	NE 10 mph	72%
4pm	Cloudy	42º	1%	NNE 4 mph	68%
5pm	Mostly Cloudy	42º	1%	NNE 3 mph	71%
6pm	Mostly Cloudy	41º	1%	NE 5 mph	73%
7pm	Cloudy	41º	1%	NE 5 mph	71%
8pm	Cloudy	40º	1%	NE 6 mph	73%
9pm	Cloudy	40º	1%	NE 7 mph	73%
10pm	Cloudy	39º	1%	NE 7 mph	73%
11pm	Cloudy	39º	1%	NE 7 mph	71%
Fri Nov 13	Cloudy View Hourly	45º / 34º	24%	NNE 13 mph	64%
12am	Cloudy	39º	18%	NE 8 mph	68%
1am	Cloudy	38º	24%	NE 8 mph	72%
2am	Few Showers	38º	32%	NE 9 mph	73%
3am	Cloudy	37º	24%	NNE 9 mph	74%
4am	Cloudy	37º	17%	NNE 10 mph	75%
5am	Few Showers	37º	32%	NNE 9 mph	75%
6am	Showers	37º	35%	NNE 9 mph	76%
7am	Rain/Snow Showers	36º	37%	NNE 10 mph	77%
8am	Cloudy	38º	24%	NNE 11 mph	74%
9am	Cloudy	39º	24%	NNE 13 mph	72%
10am	Cloudy	41º	2%	NNE 13 mph	65%
11am	Cloudy	42º	1%	NNE 13 mph	63%
12pm	Cloudy	43º	1%	NNE 13 mph	59%
1pm	Cloudy	44º	0%	NNE 12 mph	58%
2pm	Cloudy	44º	0%	NNE 11 mph	56%
3pm	Mostly Cloudy	44º	0%	N 11 mph	56%
4pm	Cloudy	42º	1%	N 9 mph	60%
5pm	Cloudy	41º	1%	N 8 mph	64%
6pm	Cloudy	40º	1%	N 7 mph	66%
7pm	Cloudy	39º	2%	N 7 mph	69%
8pm	Cloudy	39º	2%	N 7 mph	70%
9pm	Cloudy	38º	3%	N 7 mph	72%
10pm	Cloudy	37º	3%	N 6 mph	74%
11pm	Cloudy	37º	4%	N 6 mph	76%
Sat Nov 14	Cloudy View Hourly	44º / 34º	5%	NNW 8 mph	69%
12am	Cloudy	36º	4%	N 6 mph	77%
1am	Cloudy	36º	5%	NNW 6 mph	78%
2am	Cloudy	36º	5%	NNW 6 mph	79%
3am	Cloudy	36º	5%	NNW 6 mph	78%
4am	Cloudy	35º	5%	NNW 6 mph	80%
5am	Cloudy	36º	5%	NNW 5 mph	81%
6am	Mostly Cloudy	35º	5%	NNW 5 mph	81%
7am	Cloudy	36º	5%	NNW 6 mph	82%
8am	Cloudy	38º	4%	NNW 7 mph	78%
9am	Cloudy	39º	4%	NNW 8 mph	75%
10am	Mostly Cloudy	41º	2%	NNW 8 mph	69%
11am	Cloudy	42º	1%	NNW 8 mph	65%
12pm	Cloudy	42º	0%	NNW 8 mph	63%
1pm	Cloudy	43º	0%	NW 8 mph	63%
2pm	Cloudy	43º	0%	NW 8 mph	62%
3pm	Cloudy	43º	1%	NNW 8 mph	62%
Sun Nov 15	Mostly Cloudy	46º / 36º	7%	NW 14 mph	66%
Mon Nov 16	Sunny	47º / 34º	4%	NW 12 mph	62%
Tue Nov 17	Mostly Sunny	50º / 40º	5%	W 13 mph	67%
Wed Nov 18	Partly Cloudy	53º / 41º	5%	W 11 mph	69%
Thu Nov 19	Mostly Sunny	54º / 39º	4%	W 8 mph	70%

Buoy Data
For Southwest Harbor, ME
Wind Forecast
In Southwest Harbor, ME
Radar
In Southwest Harbor, ME
Marine Forecast
In Southwest Harbor, ME

NOAA Weather Marine Forecast for Southwest Harbor, ME

This Afternoon

High : 45ºF
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Tonight

Low : 32ºF
Variable winds less than 5 kt becoming NE 5 to 9 kt in the evening. Winds could gust as high as 17 kt. A chance of rain after 11pm, mixing with snow after 3am. Seas 1 ft or less.

Friday

High : 44ºF
NNE wind around 11 kt, with gusts as high as 20 kt. A chance of rain and snow showers before 9am, then a chance of rain showers between 9am and 4pm. Seas around 1 ft.

Friday Night

Low : 32ºF
N wind 5 to 7 kt. Mostly cloudy. Seas around 1 ft.

Saturday

High : 45ºF
NNW wind 5 to 7 kt. Mostly cloudy. Seas around 1 ft.

Saturday Night

Low : 32ºF
Variable winds less than 5 kt becoming NW around 6 kt after midnight. Mostly cloudy. Seas around 1 ft.

Sunday

High : 45ºF
NW wind 7 to 10 kt, with gusts as high as 19 kt. Mostly sunny. Seas around 1 ft.

Sunday Night

Low : 33ºF
NNW wind around 6 kt. Mostly cloudy. Seas 1 ft or less.

Monday

High : 46ºF
NW wind 5 to 7 kt. Sunny. Seas 1 ft or less.

Current Weather Conditions In Southwest Harbor, ME

As Of: 4 minutes ago

Temperature: 42ºF
Feels Like: 40ºF

Wind Speed: 4mph
Direction: 0º (NNE)
Gusts: 4mph

Cloud Cover: Cloudy
Visibility: 10mi

Pressure: 29.73"
Humidity: 68%
Dew Point: 0ºF

The weather right now in Southwest Harbor, ME is Cloudy. The current temperature is 42°F, and the expected high and low for today, Thursday, November 12, 2026, are -° high temperature and 35°F low temperature. The wind is currently blowing at 4 miles per hour, and coming from the North Northeast. The wind is gusting to 4 mph. With the wind and the atmosphere the temperature feels like 40° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 68 percent, and air pressure at 29.73 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).