Bar Harbor weather live forecast

Today's maximum temperature in Bar Harbor is expected to be 27°C. Select a day from the live weather forecast for Bar Harbor, Maine, USA for more weather parameters.

Wednesday
5th Aug
27

18

11

7
Thursday
6th Aug
27

17

12

8
Friday
7th Aug
28

19

9

7
Saturday
8th Aug
25

19

3

5
Sunday
9th Aug
27

18

3

7

5-day weather forecast updated at 04:01 on Wednesday 5th August 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 Wednesday 5th August 2026

Expect scattered clouds in Bar Harbor, Maine with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south-west.

27
°C maximum temperature
18
°C minimum temperature
scattered clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
9
kph wind from SW

Bar Harbor weather for Thursday 6th August 2026

Expect scattered clouds in Bar Harbor, Maine with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south-west.

27
°C maximum temperature
17
°C minimum temperature
scattered clouds
12
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
8
kph wind from SW

Bar Harbor weather for Friday 7th August 2026

Expect isolated thunderstorms in Bar Harbor, Maine with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 26% chance of some rain and a light breeze of 7 kph from the south.

28
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
7
UV index (High)
26
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
7
kph wind from S

Bar Harbor weather for Saturday 8th August 2026

Expect isolated thunderstorms in Bar Harbor, Maine with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 55% chance of some rain and little or no wind of 6 kph from the south.

25
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
5
UV index (Moderate)
55
% chance of some rain
<10
mm of rainfall expected
25
°C wind chill
6
kph wind from S

Bar Harbor weather for Sunday 9th August 2026

Expect fog in low lying areas in Bar Harbor, Maine with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south-west.