Southwest Harbor, ME Weather Forecast and Current Conditions
| Day | Sky | High / Low | Precip | Wind | Humidity | |
|---|---|---|---|---|---|---|
|
Fri Aug 21 |
 |
Cloudy Close Hourly |
-º / 61º | 2% | NE 6 mph | 73% |
| 10pm |  |
Mostly Cloudy | 65º | 2% | NE 1 mph | 70% |
| 11pm | |
Mostly Cloudy | 64º | 1% | NE 1 mph | 70% |
|
Sat Aug 22 |
 |
PM Light Rain View Hourly |
68º / 61º | 60% | ENE 11 mph | 76% |
| 12am | |
Mostly Cloudy | 64º | 1% | NNE 2 mph | 72% |
| 1am | |
Mostly Cloudy | 62º | 1% | NE 3 mph | 79% |
| 2am | |
Cloudy | 62º | 1% | NE 4 mph | 78% |
| 3am | |
Cloudy | 61º | 1% | ENE 5 mph | 79% |
| 4am | |
Cloudy | 62º | 1% | ENE 6 mph | 75% |
| 5am | |
Cloudy | 62º | 1% | ENE 6 mph | 68% |
| 6am | |
Cloudy | 62º | 1% | ENE 6 mph | 67% |
| 7am | |
Cloudy | 62º | 1% | ENE 6 mph | 71% |
| 8am | |
Cloudy | 64º | 3% | ENE 8 mph | 70% |
| 9am | |
Cloudy | 65º | 4% | ENE 9 mph | 70% |
| 10am | |
Cloudy | 66º | 22% | ENE 11 mph | 73% |
| 11am | |
Cloudy | 66º | 22% | E 10 mph | 78% |
| 12pm | |
Cloudy | 66º | 20% | E 11 mph | 77% |
| 1pm | |
Cloudy | 67º | 18% | E 11 mph | 76% |
| 2pm | |
Showers | 68º | 37% | E 11 mph | 76% |
| 3pm | |
Showers | 68º | 40% | E 11 mph | 78% |
| 4pm | |
Showers | 67º | 36% | ENE 11 mph | 81% |
| 5pm | |
Light Rain | 67º | 60% | E 11 mph | 82% |
| 6pm | |
Light Rain | 66º | 61% | ENE 11 mph | 85% |
| 7pm |  |
Rain | 65º | 63% | ENE 11 mph | 88% |
| 8pm | |
Rain | 64º | 74% | ENE 11 mph | 92% |
| 9pm | |
Light Rain | 63º | 67% | ENE 10 mph | 96% |
| 10pm | |
Rain | 63º | 80% | ENE 9 mph | 96% |
| 11pm | |
Showers | 62º | 53% | E 8 mph | 98% |
|
Sun Aug 23 |
|
Rain View Hourly |
67º / 61º | 81% | SE 9 mph | 95% |
| 12am | |
Showers | 62º | 47% | E 7 mph | 98% |
| 1am | |
Showers | 62º | 47% | E 6 mph | 98% |
| 2am | |
Showers | 62º | 47% | E 6 mph | 97% |
| 3am | |
Showers | 63º | 51% | E 5 mph | 98% |
| 4am | |
Showers | 62º | 44% | E 5 mph | 98% |
| 5am | |
Showers | 63º | 44% | ESE 5 mph | 97% |
| 6am | |
Showers | 62º | 51% | ESE 4 mph | 98% |
| 7am | |
Showers | 62º | 55% | ESE 5 mph | 99% |
| 8am | |
Rain | 62º | 67% | ESE 6 mph | 100% |
| 9am | |
Rain | 63º | 65% | ESE 7 mph | 98% |
| 10am | |
Light Rain | 64º | 68% | ESE 8 mph | 98% |
| 11am | |
Rain | 65º | 81% | ESE 8 mph | 95% |
| 12pm | |
Showers | 65º | 53% | ESE 8 mph | 93% |
| 1pm | |
Showers | 66º | 40% | ESE 9 mph | 91% |
| 2pm | |
Showers | 66º | 44% | SE 9 mph | 91% |
| 3pm | |
Showers | 67º | 41% | SE 8 mph | 93% |
| 4pm | |
Cloudy | 66º | 24% | SE 8 mph | 95% |
| 5pm | |
Showers | 66º | 49% | SSE 8 mph | 92% |
| 6pm | |
Cloudy | 66º | 19% | SE 8 mph | 92% |
| 7pm | |
Cloudy | 66º | 21% | SE 6 mph | 92% |
| 8pm |  |
Foggy | 64º | 24% | SSE 4 mph | 97% |
| 9pm | |
Few Showers | 64º | 32% | SSE 4 mph | 99% |
|
Mon Aug 24 |
 |
AM Showers | 69º / 58º | 39% | S 11 mph | 90% |
|
Tue Aug 25 |
 |
Mostly Sunny | 69º / 57º | 15% | SW 14 mph | 78% |
|
Wed Aug 26 |
|
Mostly Sunny | 70º / 57º | 9% | SW 12 mph | 74% |
|
Thu Aug 27 |
|
Mostly Sunny | 71º / 59º | 12% | S 10 mph | 79% |
|
Fri Aug 28 |
|
AM Showers | 70º / 59º | 45% | S 9 mph | 85% |
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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
Tonight
Low : 58ºF
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Saturday
High : 70ºF
ENE wind 5 to 7 kt. Rain likely, mainly after 4pm. Seas 1 ft or less.
ENE wind 5 to 7 kt. Rain likely, mainly after 4pm. Seas 1 ft or less.
Saturday Night
Low : 58ºF
ENE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Rain, mainly before 11pm. Patchy fog after 10pm. Seas around 1 ft.
ENE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Rain, mainly before 11pm. Patchy fog after 10pm. Seas around 1 ft.
Sunday
High : 68ºF
Variable winds 5 kt or less. Rain likely, then rain and possibly a thunderstorm after 5pm. Patchy fog before 1pm. Seas around 1 ft.
Variable winds 5 kt or less. Rain likely, then rain and possibly a thunderstorm after 5pm. Patchy fog before 1pm. Seas around 1 ft.
Sunday Night
Low : 60ºF
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 11pm, then a chance of showers after 11pm. Patchy fog before 7pm, then Patchy fog after 8pm. Seas 1 ft or less.
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 11pm, then a chance of showers after 11pm. Patchy fog before 7pm, then Patchy fog after 8pm. Seas 1 ft or less.
Monday
High : 70ºF
Variable winds less than 5 kt becoming S 5 to 8 kt in the morning. Winds could gust as high as 15 kt. A chance of showers, mainly before 10am. Patchy fog before 10am. Seas 1 ft or less.
Variable winds less than 5 kt becoming S 5 to 8 kt in the morning. Winds could gust as high as 15 kt. A chance of showers, mainly before 10am. Patchy fog before 10am. Seas 1 ft or less.
Monday Night
Low : 58ºF
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Tuesday
High : 71ºF
Variable winds less than 5 kt becoming SW 5 to 10 kt in the morning. Sunny. Seas 1 ft or less.
Variable winds less than 5 kt becoming SW 5 to 10 kt in the morning. Sunny. Seas 1 ft or less.
Tuesday Night
Low : 58ºF
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
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Wind Speed Forecast for Southwest Harbor, ME
| Saturday | Sunday | |||||||||||
| Wind Speed (MPH) | 1 | 4 | 6 | 11 | 11 | 11 | 9 | 6 | 4 | 8 | 9 | 8 |
| 2am | 6am | 10am | 2pm | 6pm | 10pm | 2am | 6am | 10am | 2pm | 6pm | 10pm | |
| MPH | 1 | 4 | 6 | 11 | 11 | 11 | 9 | 6 | 4 | 8 | 9 | 8 |
| DIR | NE | NE | ENE | ENE | E | ENE | ENE | E | ESE | ESE | SE | SE |
Current Weather Conditions In Southwest Harbor, ME
As Of: 44 minutes ago
- 65ºF
- 65ºF
- 1mph
- 0º (NE)
- 1mph
- Mostly Cloudy
- 9mi
- 30.11"
- 70%
- 0ºF
The weather right now in Southwest Harbor, ME is Mostly Cloudy. The current temperature is 65°F, and the expected high and low for today, Friday, August 21, 2026, are -° high temperature and 61°F low temperature. The wind is currently blowing at 1 miles per hour, and coming from the Northeast. The wind is gusting to 1 mph. With the wind and the atmosphere the temperature feels like 65° Fahrenheit. Expected precipitation is 2 percent, with current humidity at 70 percent, and air pressure at 30.11 in. Visibility is 9 nautical miles. There are no current weather alert(s).
