Southwest Harbor, ME Weather Forecast and Current Conditions
| Day | Sky | High / Low | Precip | Wind | Humidity | |
|---|---|---|---|---|---|---|
|
Tue Jul 7 |
 |
Mostly Cloudy Close Hourly |
62º / 56º | 18% | E 8 mph | 90% |
| 8am | |
Mostly Cloudy | 58º | 19% | ENE 7 mph | 95% |
| 9am |  |
Cloudy | 59º | 19% | E 7 mph | 94% |
| 10am | |
Cloudy | 60º | 15% | E 8 mph | 91% |
| 11am | |
Mostly Cloudy | 60º | 15% | ESE 8 mph | 92% |
| 12pm | |
Mostly Cloudy | 59º | 15% | E 8 mph | 92% |
| 1pm | |
Mostly Cloudy | 58º | 3% | ESE 9 mph | 93% |
| 2pm | |
Mostly Cloudy | 60º | 4% | ESE 9 mph | 88% |
| 3pm | |
Mostly Cloudy | 62º | 5% | ESE 8 mph | 84% |
| 4pm | |
Mostly Cloudy | 62º | 8% | ESE 7 mph | 84% |
| 5pm | |
Mostly Cloudy | 61º | 12% | ESE 7 mph | 87% |
| 6pm |  |
Foggy | 60º | 18% | ESE 7 mph | 88% |
| 7pm | |
Foggy | 59º | 18% | ESE 6 mph | 92% |
| 8pm | |
Foggy | 59º | 18% | ESE 4 mph | 95% |
| 9pm | |
Foggy | 58º | 22% | ESE 4 mph | 99% |
| 10pm | |
Foggy | 57º | 23% | E 3 mph | 100% |
| 11pm | |
Foggy | 57º | 21% | E 3 mph | 100% |
|
Wed Jul 8 |
|
AM Fog/PM Sun View Hourly |
67º / 58º | 22% | SE 7 mph | 86% |
| 12am | |
Foggy | 57º | 21% | ENE 3 mph | 100% |
| 1am | |
Foggy | 57º | 21% | ENE 3 mph | 100% |
| 2am | |
Foggy | 57º | 16% | ENE 4 mph | 100% |
| 3am | |
Foggy | 57º | 17% | NE 2 mph | 100% |
| 4am | |
Foggy | 57º | 21% | NE 3 mph | 100% |
| 5am | |
Foggy | 57º | 22% | NE 3 mph | 98% |
| 6am | |
Foggy | 57º | 20% | NNE 3 mph | 100% |
| 7am | |
Foggy | 57º | 22% | NE 3 mph | 100% |
| 8am | |
Foggy | 59º | 21% | ENE 3 mph | 99% |
| 9am | |
Cloudy | 60º | 21% | ENE 4 mph | 96% |
| 10am | |
Cloudy | 62º | 20% | E 4 mph | 90% |
| 11am | |
Mostly Cloudy | 64º | 19% | ESE 5 mph | 85% |
| 12pm | |
Mostly Cloudy | 63º | 19% | SE 6 mph | 87% |
| 1pm |  |
Partly Cloudy | 64º | 5% | SSE 6 mph | 85% |
| 2pm | |
Partly Cloudy | 65º | 5% | SSE 7 mph | 82% |
| 3pm | |
Partly Cloudy | 66º | 5% | SSE 7 mph | 79% |
| 4pm | |
Partly Cloudy | 66º | 5% | S 7 mph | 76% |
| 5pm |  |
Mostly Sunny | 66º | 5% | SSW 7 mph | 76% |
| 6pm | |
Partly Cloudy | 65º | 5% | SW 7 mph | 77% |
| 7pm | |
Partly Cloudy | 63º | 19% | SW 6 mph | 82% |
| 8pm | |
Partly Cloudy | 61º | 20% | SW 5 mph | 89% |
| 9pm |  |
Partly Cloudy | 60º | 8% | SW 5 mph | 92% |
| 10pm | |
Cloudy | 59º | 20% | SW 5 mph | 93% |
| 11pm | |
Partly Cloudy | 59º | 9% | SW 5 mph | 93% |
|
Thu Jul 9 |
|
Partly Cloudy View Hourly |
72º / 60º | 10% | SW 12 mph | 78% |
| 12am | |
Partly Cloudy | 59º | 8% | SW 6 mph | 95% |
| 1am | |
Partly Cloudy | 59º | 17% | WSW 6 mph | 96% |
| 2am | |
Partly Cloudy | 59º | 14% | WSW 6 mph | 95% |
| 3am | |
Partly Cloudy | 59º | 14% | WSW 6 mph | 94% |
| 4am | |
Partly Cloudy | 59º | 14% | WSW 6 mph | 94% |
| 5am | |
Mostly Cloudy | 59º | 9% | WSW 5 mph | 94% |
| 6am | |
Partly Cloudy | 60º | 13% | WSW 5 mph | 93% |
| 7am | |
Partly Cloudy | 62º | 8% | WSW 5 mph | 92% |
|
Fri Jul 10 |
 |
Showers | 71º / 62º | 41% | SW 8 mph | 85% |
|
Sat Jul 11 |
|
Mostly Sunny | 74º / 59º | 4% | NW 8 mph | 61% |
|
Sun Jul 12 |
|
Mostly Sunny | 71º / 59º | 8% | SW 9 mph | 69% |
|
Mon Jul 13 |
|
Partly Cloudy | 69º / 61º | 18% | SSW 15 mph | 76% |
|
Tue Jul 14 |
|
Partly Cloudy | 72º / 62º | 24% | SW 13 mph | 79% |
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Buoy Data
For Southwest Harbor, ME -
Wind Forecast
In Southwest Harbor, ME -
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In Southwest Harbor, ME -
Marine Forecast
In Southwest Harbor, ME
Weather Radar for Southwest Harbor, ME See Radar
* Playback displays weather for the past 6 hours.
NOAA Weather Marine Forecast for Southwest Harbor, ME
Today
High : 66ºF
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.
Tonight
Low : 55ºF
Variable winds 5 kt or less. A slight chance of showers after 1am. Patchy fog after 10pm. Seas 1 ft or less.
Variable winds 5 kt or less. A slight chance of showers after 1am. Patchy fog after 10pm. Seas 1 ft or less.
Wednesday
High : 72ºF
Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.
Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.
Wednesday Night
Low : 58ºF
Variable winds 5 kt or less. Patchy fog between 4am and 5am. Seas 1 ft or less.
Variable winds 5 kt or less. Patchy fog between 4am and 5am. Seas 1 ft or less.
Thursday
High : 71ºF
Variable winds less than 5 kt becoming SW 5 to 9 kt in the morning. Winds could gust as high as 17 kt. Mostly sunny. Seas 1 ft or less.
Variable winds less than 5 kt becoming SW 5 to 9 kt in the morning. Winds could gust as high as 17 kt. Mostly sunny. Seas 1 ft or less.
Thursday Night
Low : 62ºF
SW wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of rain, mainly between 10pm and 1am. Patchy fog after 3am. Seas 1 ft or less.
SW wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of rain, mainly between 10pm and 1am. Patchy fog after 3am. Seas 1 ft or less.
Friday
High : 72ºF
Variable winds 5 kt or less. A chance of rain, then rain likely and possibly a thunderstorm after 2pm. Patchy fog before 8am. Seas 1 ft or less.
Variable winds 5 kt or less. A chance of rain, then rain likely and possibly a thunderstorm after 2pm. Patchy fog before 8am. Seas 1 ft or less.
Friday Night
Low : 61ºF
Variable winds 5 kt or less. A chance of rain and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Seas 1 ft or less.
Variable winds 5 kt or less. A chance of rain and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Seas 1 ft or less.
Saturday
High : 79ºF
Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.
Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.
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Wind Speed Forecast for Southwest Harbor, ME
| Tuesday | Wednesday | Thursday | ||||||||||
| Wind Speed (MPH) | 7 | 8 | 7 | 4 | 3 | 3 | 3 | 6 | 7 | 5 | 6 | 6 |
| 12pm | 4pm | 8pm | 12am | 4am | 8am | 12pm | 4pm | 8pm | 12am | 4am | 8am | |
| MPH | 7 | 8 | 7 | 4 | 3 | 3 | 3 | 6 | 7 | 5 | 6 | 6 |
| DIR | ENE | E | ESE | ESE | ENE | NE | ENE | SE | S | SW | SW | WSW |
Current Weather Conditions In Southwest Harbor, ME
As Of: 4 seconds ago
- 58ºF
- 57ºF
- 7mph
- 0º (ENE)
- 7mph
- Mostly Cloudy
- 7mi
- 30.19"
- 95%
- 0ºF
The weather right now in Southwest Harbor, ME is Mostly Cloudy. The current temperature is 58°F, and the expected high and low for today, Tuesday, July 7, 2026, are 62° high temperature and 56°F low temperature. The wind is currently blowing at 7 miles per hour, and coming from the East Northeast. The wind is gusting to 7 mph. With the wind and the atmosphere the temperature feels like 57° Fahrenheit. Expected precipitation is 19 percent, with current humidity at 95 percent, and air pressure at 30.19 in. Visibility is 7 nautical miles. There are no current weather alert(s).
