Get the monthly weather forecast for Bar Harbor, ME, including daily high/low, historical averages, to help you plan ahead.

In Bar Harbor during May average daily high temperatures increase from 55°F to 63°F and it is overcast or mostly cloudy about 58% of the time.

Get the monthly weather forecast for Bar Harbor Town, ME, including daily high/low, historical averages, to help you plan ahead.

Bar Harbor Weather in May, USA ; High Temperature. 16°C · 61°F ; Low Temperature. 6°C · 43°F ; Rainfall. 22 mm ; Chance of Rain. 0 % ; Chance of Snow Day. 0 %.

This is the only time of year when you'll get to experience Bar Harbor in consistent 70-degree weather. ... Though temperatures during the day may be pleasant, ...

Cloudy early then becoming windy with periods of rain this afternoon. High 46F. ESE winds at 5 to 10 mph, increasing to 20 to 30 mph. Chance of rain 100%.

The month of May in Bar Harbor typically brings moderate temperatures and high rainfall. In the daytime, temperatures tend to hover near 18°C, cooling down at ...

In Bar Harbor, the summers are comfortable; the winters are freezing, snowy, and windy; and it is partly cloudy year round.

Bar Harbor temperatures range from the mid 70s to low 80s as pleasantly warm highs and 40 to 50 degrees at night.