Bar Harbor weather live forecast

Today's maximum temperature in Bar Harbor is expected to be 20°C. Select a day from the live weather forecast for Bar Harbor, Maine, USA for more weather parameters.

Monday
3rd Aug
20

18

1

2
Tuesday
4th Aug
24

19

14

7
Wednesday
5th Aug
25

17

9

7
Thursday
6th Aug
26

16

10

7
Friday
7th Aug
28

18

4

8

5-day weather forecast updated at 04:01 on Monday 3rd 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 Monday 3rd August 2026

Expect mostly cloudy with rain in Bar Harbor, Maine with a maximum temperature of 20°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 94% chance of some rain and a moderate breeze of 21 kph from the south.

20
°C maximum temperature
18
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
2
UV index (Low)
94
% chance of some rain
<20
mm of rainfall expected
20
°C wind chill
21
kph wind from S

Bar Harbor weather for Tuesday 4th August 2026

Expect clear skies in Bar Harbor, Maine with a maximum temperature of 24°C, maximum UV of 7 (High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the west.

24
°C maximum temperature
19
°C minimum temperature
clear skies
14
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from W

Bar Harbor weather for Wednesday 5th August 2026

Expect scattered clouds in Bar Harbor, Maine with a maximum temperature of 25°C, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south-west.

25
°C maximum temperature
17
°C minimum temperature
scattered clouds
9
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no 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 26°C, low levels of heat & humidity, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south-west.

26
°C maximum temperature
16
°C minimum temperature
scattered clouds
10
hours of sunshine
7
UV index (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 8 (Very High) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 42% chance of some rain and a light breeze of 8 kph from the south-west.