Southwest Harbor, ME Weather Forecast and Current Conditions

Day	Sky	High / Low	Precip	Wind	Humidity
Fri Sep 11	Clear Close Hourly	-º / 49º	4%	NW 12 mph	66%
5pm	Sunny	70º	0%	WNW 12 mph	42%
6pm	Sunny	68º	0%	WNW 11 mph	41%
7pm	Clear	66º	0%	NW 9 mph	46%
8pm	Clear	61º	0%	NW 7 mph	59%
9pm	Clear	59º	1%	NW 6 mph	62%
10pm	Clear	58º	1%	NW 6 mph	67%
11pm	Clear	57º	1%	NW 5 mph	70%
Sat Sep 12	Sunny View Hourly	64º / 57º	4%	SW 9 mph	70%
12am	Clear	55º	2%	NW 5 mph	75%
1am	Clear	54º	2%	NW 5 mph	76%
2am	Clear	53º	3%	NW 5 mph	77%
3am	Clear	53º	3%	WNW 5 mph	78%
4am	Clear	52º	4%	WNW 4 mph	79%
5am	Clear	51º	4%	NW 4 mph	83%
6am	Clear	50º	5%	NW 4 mph	86%
7am	Sunny	52º	5%	NNW 2 mph	84%
8am	Sunny	56º	3%	NNW 2 mph	77%
9am	Sunny	59º	2%	NW 3 mph	72%
10am	Sunny	61º	1%	WSW 4 mph	66%
11am	Sunny	62º	1%	SSW 5 mph	65%
12pm	Sunny	63º	1%	SSW 7 mph	64%
1pm	Sunny	63º	1%	SSW 9 mph	65%
2pm	Sunny	62º	1%	SSW 9 mph	66%
3pm	Sunny	63º	1%	SSW 9 mph	65%
4pm	Sunny	62º	1%	SSW 9 mph	67%
5pm	Sunny	61º	2%	SSW 9 mph	72%
6pm	Sunny	60º	3%	SSW 8 mph	73%
7pm	Clear	59º	5%	SSW 7 mph	79%
8pm	Clear	58º	6%	SSW 7 mph	83%
9pm	Partly Cloudy	58º	7%	SSW 7 mph	86%
10pm	Partly Cloudy	58º	7%	SSW 6 mph	88%
11pm	Mostly Clear	58º	7%	SSW 7 mph	90%
Sun Sep 13	Rain View Hourly	62º / 59º	87%	S 13 mph	94%
12am	Partly Cloudy	58º	7%	SSW 7 mph	90%
1am	Partly Cloudy	58º	8%	SSW 7 mph	92%
2am	Mostly Cloudy	59º	9%	SSW 8 mph	92%
3am	Cloudy	59º	10%	SSW 8 mph	91%
4am	Mostly Cloudy	59º	10%	SSW 8 mph	92%
5am	Cloudy	59º	10%	SSW 8 mph	94%
6am	Cloudy	59º	10%	SSW 8 mph	94%
7am	Cloudy	60º	24%	S 9 mph	94%
8am	Showers	61º	39%	SSW 10 mph	94%
9am	Showers	62º	46%	SSW 10 mph	91%
10am	Rain	62º	65%	S 12 mph	93%
11am	Rain	62º	73%	S 12 mph	94%
12pm	Rain	62º	88%	S 13 mph	94%
1pm	Rain	62º	87%	S 13 mph	93%
2pm	Rain	62º	76%	S 12 mph	94%
3pm	Rain	62º	74%	S 11 mph	94%
4pm	Rain	61º	79%	SSE 12 mph	94%
Mon Sep 14	Partly Cloudy	69º / 50º	24%	NW 13 mph	67%
Tue Sep 15	Mostly Sunny	62º / 54º	4%	SE 8 mph	68%
Wed Sep 16	Partly Cloudy	64º / 56º	8%	SSW 11 mph	80%
Thu Sep 17	Showers	64º / 54º	44%	S 10 mph	90%
Fri Sep 18	Partly Cloudy	64º / 53º	24%	NW 10 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 : 67ºF
WNW wind around 10 kt, with gusts as high as 19 kt. Sunny. Seas 1 ft or less.

Tonight

Low : 48ºF
Variable winds 5 kt or less. Clear. Seas 1 ft or less.

Saturday

High : 65ºF
Variable winds less than 5 kt becoming SSW 5 to 8 kt in the afternoon. Winds could gust as high as 16 kt. Sunny. Seas 1 ft or less.

Saturday Night

Low : 56ºF
Variable winds less than 5 kt becoming S around 6 kt after midnight. Mostly cloudy. Seas 1 ft or less.

Sunday

High : 63ºF
S wind 9 to 11 kt, with gusts as high as 20 kt. Showers likely, mainly after 2pm. Seas 1 ft or less.

Sunday Night

Low : 58ºF
S wind around 6 kt becoming variable and less than 5 kt in the evening. Showers likely, mainly before 8pm. Seas 1 ft or less.

Monday

High : 70ºF
NW wind 5 to 8 kt, with gusts as high as 15 kt. Mostly sunny. Seas 1 ft or less.

Monday Night

Low : 49ºF
NNW wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

Tuesday

High : 65ºF
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Current Weather Conditions In Southwest Harbor, ME

As Of: 22 minutes ago

Temperature: 70ºF
Feels Like: 70ºF

Wind Speed: 12mph
Direction: 0º (WNW)
Gusts: 19mph

Cloud Cover: Sunny
Visibility: 8mi

Pressure: 29.86"
Humidity: 42%
Dew Point: 0ºF

The weather right now in Southwest Harbor, ME is Sunny. The current temperature is 70°F, and the expected high and low for today, Friday, September 11, 2026, are -° high temperature and 49°F low temperature. The wind is currently blowing at 12 miles per hour, and coming from the West Northwest. The wind is gusting to 19 mph. With the wind and the atmosphere the temperature feels like 70° Fahrenheit. Expected precipitation is 0 percent, with current humidity at 42 percent, and air pressure at 29.86 in. Visibility is 8 nautical miles. There are no current weather alert(s).