Bar Harbor Weather Forecast
Bar Harbor weather: 51°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
14-day forecast for Bar Harbor
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Wed, Sep 16 | ☁️ Overcast | 67° / 51° | 2% | 11 mph | 6 |
| Thu, Sep 17 | 🌧️ Rain | 63° / 58° | 71% · 0,2 in | 9 mph | 4 |
| Fri, Sep 18 | 🌧️ Rain | 73° / 51° | 71% · 0,1 in | 19 mph | 6 |
| Sat, Sep 19 | ☁️ Overcast | 64° / 42° | 2% | 15 mph | 6 |
| Sun, Sep 20 | 🌧️ Heavy drizzle | 55° / 48° | 40% · 0,4 in | 12 mph | 1 |
| Mon, Sep 21 | ☁️ Overcast | 62° / 47° | 15% | 12 mph | 5 |
| Tue, Sep 22 | ☁️ Overcast | 58° / 42° | 19% | 7 mph | 4 |
| Wed, Sep 23 | ☁️ Overcast | 56° / 44° | 15% | 11 mph | 3 |
| Thu, Sep 24 | 🌧️ Heavy drizzle | 60° / 54° | 21% · 0,4 in | 11 mph | 1 |
| Fri, Sep 25 | 🌦️ Light showers | 67° / 52° | 22% · 0,8 in | 11 mph | 3 |
| Sat, Sep 26 | ☁️ Overcast | 55° / 43° | 19% | 15 mph | 4 |
| Sun, Sep 27 | ⛅ Partly cloudy | 64° / 44° | 13% | 13 mph | 5 |
| Mon, Sep 28 | ☁️ Overcast | 69° / 51° | 10% | 10 mph | 5 |
| Tue, Sep 29 | ☁️ Overcast | 77° / 58° | 12% | 9 mph | 5 |
The two-week trend
Steady. The second week averages within a degree of the first, so no big change is signalled.
The window averages 64°F against a September normal of 71°F - 38°F below.
Rainfall over the next 7 days is close to normal for September (0,7 in against a typical 0,9 in).
What this means for Bar Harbor
Today is slightly cooler than average for September. The forecast high of 67°F is 3.1°F below the 71°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 77°F.
What to pack, what to skip
- Layers - the daily swing is 62°F, so mornings feel nothing like afternoons
- A packable rain shell - 3 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, March and December - historically the least comfortable months here.
See the Bar Harbor forecast by time range
Bar Harbor weather - more answers
Explore Bar Harbor
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Bar Harbor?
Bar Harbor is a city in Maine. Its coordinates are 44.3876, -68.2039. It lies in North America.
What is the weather like in Bar Harbor right now?
It is currently 51°F (10°C) with clear. Humidity is 75% and wind is 4 mph.
When is the best time to visit Bar Harbor?
June, July and August offer the most comfortable conditions in Bar Harbor, which has a continental climate. January, March and December are usually the hardest months for outdoor plans.
What time zone is Bar Harbor in?
Bar Harbor observes America/New_York (UTC-04:00). The local time is 11:31 PM.
How many people live in Bar Harbor?
Bar Harbor has a population of approximately 5.500.
What is the nearest airport to Bar Harbor?
The closest airports are Boston Logan International Airport (BOS), 198 mi away and Montreal-Trudeau International Airport (YUL), 281 mi away.
What are the top things to do in Bar Harbor?
Popular options include Acadia National Park, Baxter State Park, Mount Washington, Franconia Notch State Park, Cape Cod National Seashore and St. Lawrence River.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated September 16, 2026 at 11:31 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
