Bar Harbor weather live forecast

Today's maximum temperature in Bar Harbor is expected to be 21°C. Select a day from the live weather forecast for Bar Harbor, Maine, USA for more weather parameters.

Tuesday
8th Sep
21

13

8

5
Wednesday
9th Sep
17

11

3

5
Thursday
10th Sep
24

17

6

6
Friday
11th Sep
19

12

9

5
Saturday
12th Sep
19

10

12

5

5-day weather forecast updated at 04:01 on Tuesday 8th September 2026 GMT

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The 5-day weather forecast for Maine (Bar Harbor) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Bar Harbor weather forecast by day

Below are the detailed weather forecasts for Bar Harbor for the next 5 days.

Bar Harbor weather for Tuesday 8th September 2026

Expect scattered clouds in Bar Harbor, Maine with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north.

21
°C maximum temperature
13
°C minimum temperature
scattered clouds
8
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from N

Bar Harbor weather for Wednesday 9th September 2026

Expect mostly cloudy with light rain in Bar Harbor, Maine with a maximum temperature of 17°C, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 54% chance of some rain and a gentle breeze of 17 kph from the south.

17
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
5
UV index (Moderate)
54
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
17
kph wind from S

Bar Harbor weather for Thursday 10th September 2026

Expect sunshine and showers in Bar Harbor, Maine with a maximum temperature of 24°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 37% chance of some rain and a moderate breeze of 23 kph from the south-west.

24
°C maximum temperature
17
°C minimum temperature
sunshine and showers
6
hours of sunshine
6
UV index (High)
37
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
23
kph wind from SW

Bar Harbor weather for Friday 11th September 2026

Expect scattered clouds in Bar Harbor, Maine with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north-west.

19
°C maximum temperature
12
°C minimum temperature
scattered clouds
9
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
13
kph wind from NW

Bar Harbor weather for Saturday 12th September 2026

Expect clear skies in Bar Harbor, Maine with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south.