Bar Harbor Weather Forecast
Bar Harbor weather: 62°F, rain. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Risk assessment for Bar Harbor
Derived from the current forecast window - not an official warning.
Peak gusts of 31 mph and 0 thunderstorm days in the next 16 days.
Wettest single day forecast at 0,4 in, 0,4 in across the window. Flash flooding risk rises sharply above 50 mm in a day.
16-day forecast for Bar Harbor
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Sep 18 | 🌧️ Rain | 71° / 52° | 98% · 0,4 in | 14 mph | 6 |
| Sat, Sep 19 | ☁️ Overcast | 59° / 45° | 0% | 14 mph | 6 |
| Sun, Sep 20 | ☁️ Overcast | 60° / 45° | 16% | 13 mph | 5 |
| Mon, Sep 21 | ☁️ Overcast | 67° / 49° | 16% | 12 mph | 5 |
| Tue, Sep 22 | ☁️ Overcast | 57° / 44° | 2% | 11 mph | 5 |
| Wed, Sep 23 | ☁️ Overcast | 57° / 44° | 2% | 13 mph | 5 |
| Thu, Sep 24 | ☁️ Overcast | 58° / 44° | 21% | 16 mph | 4 |
| Fri, Sep 25 | ☁️ Overcast | 67° / 51° | 24% | 11 mph | 5 |
| Sat, Sep 26 | ☁️ Overcast | 68° / 46° | 12% | 8 mph | 5 |
| Sun, Sep 27 | 🌤️ Mainly clear | 64° / 47° | 15% | 6 mph | 5 |
| Mon, Sep 28 | ☁️ Overcast | 64° / 46° | 13% | 8 mph | 5 |
| Tue, Sep 29 | ☁️ Overcast | 69° / 50° | 13% | 6 mph | 4 |
| Wed, Sep 30 | ☁️ Overcast | 67° / 51° | 10% | 11 mph | 5 |
| Thu, Oct 1 | ☁️ Overcast | 57° / 46° | 8% | 11 mph | 3 |
| Fri, Oct 2 | ☁️ Overcast | 62° / 46° | 13% | 9 mph | 4 |
| Sat, Oct 3 | ☀️ Clear sky | -- / -- | 26% | -- | — |
What this means for Bar Harbor
Today is about average for September. The forecast high of 71°F is in line with the 71°F typical for this month.
A 98% chance means rain is expected over most of the area. Plan indoor alternatives.
Visibility is down to 0,1 mi - use low beams and leave extra following distance. Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 77°F.
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.
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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 62°F (17°C) with rain. Humidity is 99% 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 3:13 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 18, 2026 at 3:13 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
