Southwest Harbor, ME Weather Forecast and Current Conditions
| Day | Sky | High / Low | Precip | Wind | Humidity | |
|---|---|---|---|---|---|---|
|
Wed Jun 17 |
 |
Partly Cloudy Close Hourly |
64º / 49º | 6% | S 8 mph | 80% |
| 6am |  |
Sunny | 55º | 2% | W 1 mph | 89% |
| 7am | |
Partly Cloudy | 56º | 2% | S 1 mph | 89% |
| 8am | |
Partly Cloudy | 59º | 2% | S 2 mph | 82% |
| 9am | |
Partly Cloudy | 62º | 2% | S 3 mph | 79% |
| 10am |  |
Mostly Sunny | 63º | 1% | SSE 5 mph | 73% |
| 11am | |
Mostly Sunny | 64º | 1% | SSE 5 mph | 74% |
| 12pm | |
Partly Cloudy | 62º | 1% | SSE 7 mph | 76% |
| 1pm | |
Mostly Sunny | 63º | 3% | S 8 mph | 75% |
| 2pm | |
Mostly Sunny | 62º | 4% | S 8 mph | 78% |
| 3pm | |
Mostly Sunny | 62º | 5% | S 8 mph | 79% |
| 4pm | |
Partly Cloudy | 61º | 5% | S 7 mph | 79% |
| 5pm | |
Partly Cloudy | 60º | 5% | SSW 7 mph | 80% |
| 6pm | |
Partly Cloudy | 59º | 6% | SSW 6 mph | 82% |
| 7pm | |
Partly Cloudy | 56º | 8% | SSW 5 mph | 88% |
| 8pm | |
Partly Cloudy | 54º | 17% | SSW 4 mph | 94% |
| 9pm |  |
Partly Cloudy | 53º | 18% | S 4 mph | 95% |
| 10pm | |
Partly Cloudy | 53º | 18% | SSW 3 mph | 96% |
| 11pm |  |
Mostly Cloudy | 53º | 21% | SSW 3 mph | 95% |
|
Thu Jun 18 |
 |
Rain/Wind View Hourly |
57º / 55º | 89% | SE 22 mph | 92% |
| 12am | |
Partly Cloudy | 52º | 9% | SSW 3 mph | 96% |
| 1am | |
Partly Cloudy | 52º | 17% | SSW 3 mph | 97% |
| 2am | |
Partly Cloudy | 52º | 9% | S 3 mph | 95% |
| 3am | |
Mostly Cloudy | 51º | 17% | SSE 2 mph | 99% |
| 4am | |
Mostly Cloudy | 50º | 18% | SSE 3 mph | 100% |
| 5am |  |
Cloudy | 50º | 17% | SE 3 mph | 100% |
| 6am | |
Cloudy | 51º | 18% | SE 5 mph | 100% |
| 7am | |
Cloudy | 52º | 19% | SSE 5 mph | 99% |
| 8am | |
Cloudy | 54º | 24% | SE 8 mph | 94% |
| 9am | |
Cloudy | 55º | 21% | SSE 9 mph | 89% |
| 10am |  |
Few Showers | 55º | 33% | SSE 11 mph | 89% |
| 11am | |
Showers | 55º | 52% | SSE 11 mph | 91% |
| 12pm | |
Light Rain | 54º | 66% | SE 12 mph | 92% |
| 1pm | |
Showers | 55º | 59% | SE 14 mph | 92% |
| 2pm | |
Showers | 55º | 47% | SE 15 mph | 94% |
| 3pm | |
Showers | 55º | 43% | SE 17 mph | 94% |
| 4pm | |
Light Rain | 56º | 64% | SE 18 mph | 91% |
| 5pm | |
Rain/Wind | 56º | 71% | SE 20 mph | 89% |
| 6pm | |
Rain/Wind | 56º | 90% | SE 22 mph | 87% |
| 7pm | |
Rain/Wind | 56º | 89% | SSE 20 mph | 90% |
| 8pm | |
Rain | 56º | 68% | SSE 17 mph | 92% |
| 9pm | |
Rain | 57º | 65% | SSE 16 mph | 94% |
| 10pm | |
Showers | 58º | 45% | S 15 mph | 96% |
| 11pm | |
Few Showers | 58º | 32% | S 13 mph | 96% |
|
Fri Jun 19 |
|
Partly Cloudy View Hourly |
65º / 56º | 15% | SW 17 mph | 78% |
| 12am |  |
Foggy | 59º | 24% | SSW 12 mph | 97% |
| 1am | |
Foggy | 58º | 24% | SW 11 mph | 97% |
| 2am | |
Foggy | 58º | 18% | SW 11 mph | 96% |
| 3am | |
Foggy | 58º | 21% | SW 10 mph | 98% |
| 4am | |
Foggy | 57º | 21% | WSW 9 mph | 98% |
| 5am | |
Foggy | 56º | 21% | WSW 9 mph | 98% |
|
Sat Jun 20 |
|
Partly Cloudy | 65º / 54º | 22% | W 14 mph | 73% |
|
Sun Jun 21 |
 |
PM Showers | 63º / 52º | 51% | WSW 9 mph | 80% |
|
Mon Jun 22 |
|
Rain | 61º / 53º | 63% | SSE 9 mph | 87% |
|
Tue Jun 23 |
|
Showers | 64º / 54º | 53% | SSE 11 mph | 83% |
|
Wed Jun 24 |
|
Partly Cloudy | 66º / 54º | 13% | WSW 9 mph | 78% |
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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 : 67ºF
Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Tonight
Low : 50ºF
Variable winds 5 kt or less. Patchy fog after 1am. Seas 1 ft or less.
Variable winds 5 kt or less. Patchy fog after 1am. Seas 1 ft or less.
Thursday
High : 65ºF
SE wind 5 to 8 kt increasing to 9 to 12 kt in the afternoon. Winds could gust as high as 22 kt. A chance of showers, then showers and possibly a thunderstorm after 5pm. Patchy fog before 2pm. Seas 1 ft or less.
SE wind 5 to 8 kt increasing to 9 to 12 kt in the afternoon. Winds could gust as high as 22 kt. A chance of showers, then showers and possibly a thunderstorm after 5pm. Patchy fog before 2pm. Seas 1 ft or less.
Thursday Night
Low : 55ºF
SSE wind 11 to 14 kt becoming SW 8 to 11 kt after midnight. Winds could gust as high as 25 kt. Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Patchy fog after midnight. Seas around 1 ft.
SSE wind 11 to 14 kt becoming SW 8 to 11 kt after midnight. Winds could gust as high as 25 kt. Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Patchy fog after midnight. Seas around 1 ft.
Juneteenth
High : 72ºF
SW wind 9 to 13 kt, with gusts as high as 23 kt. Sunny. Seas around 1 ft.
SW wind 9 to 13 kt, with gusts as high as 23 kt. Sunny. Seas around 1 ft.
Friday Night
Low : 55ºF
W wind 6 to 8 kt, with gusts as high as 15 kt. Mostly clear. Seas 1 ft or less.
W wind 6 to 8 kt, with gusts as high as 15 kt. Mostly clear. Seas 1 ft or less.
Saturday
High : 72ºF
WSW wind around 11 kt, with gusts as high as 20 kt. A slight chance of showers after 2pm. Seas 1 ft or less.
WSW wind around 11 kt, with gusts as high as 20 kt. A slight chance of showers after 2pm. Seas 1 ft or less.
Saturday Night
Low : 54ºF
W wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.
W wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.
Sunday
High : 68ºF
WNW wind 5 to 8 kt becoming WSW in the afternoon. A chance of showers. Seas 1 ft or less.
WNW wind 5 to 8 kt becoming WSW in the afternoon. A chance of showers. Seas 1 ft or less.
NOAA Buoy Data Near Southwest Harbor, ME See Map
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Wind Speed Forecast for Southwest Harbor, ME
| Wednesday | Thursday | Friday | ||||||||||
| Wind Speed (MPH) | 1 | 5 | 8 | 6 | 3 | 3 | 5 | 11 | 15 | 22 | 15 | 11 |
| 10am | 2pm | 6pm | 10pm | 2am | 6am | 10am | 2pm | 6pm | 10pm | 2am | 6am | |
| MPH | 1 | 5 | 8 | 6 | 3 | 3 | 5 | 11 | 15 | 22 | 15 | 11 |
| DIR | W | SSE | S | SSW | SSW | S | SE | SSE | SE | SE | S | SW |
Current Weather Conditions In Southwest Harbor, ME
As Of: 19 minutes ago
- 55ºF
- 55ºF
- 1mph
- 0º (W)
- 1mph
- Sunny
- 10mi
- 29.82"
- 89%
- 0ºF
The weather right now in Southwest Harbor, ME is Sunny. The current temperature is 55°F, and the expected high and low for today, Wednesday, June 17, 2026, are 64° high temperature and 49°F low temperature. The wind is currently blowing at 1 miles per hour, and coming from the West. The wind is gusting to 1 mph. With the wind and the atmosphere the temperature feels like 55° Fahrenheit. Expected precipitation is 2 percent, with current humidity at 89 percent, and air pressure at 29.82 in. Visibility is 10 nautical miles. There are no current weather alert(s).
