Bar Harbor weather live forecast

Today's maximum temperature in Bar Harbor is expected to be 23°C. Select a day from the live weather forecast for Bar Harbor, Maine, USA for more weather parameters.

Friday
21st Aug
23

16

11

7
Saturday
22nd Aug
20

16

2

4
Sunday
23rd Aug
20

16

0

2
Monday
24th Aug
22

17

1

7
Tuesday
25th Aug
21

15

6

7

5-day weather forecast updated at 04:01 on Friday 21st 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 Friday 21st August 2026

Expect scattered clouds in Bar Harbor, Maine with a maximum temperature of 23°C, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north.

23
°C maximum temperature
16
°C minimum temperature
scattered clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
7
kph wind from N

Bar Harbor weather for Saturday 22nd August 2026

Expect mostly cloudy with rain in Bar Harbor, Maine with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 91% chance of some rain and a light breeze of 10 kph from the east.

20
°C maximum temperature
16
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
4
UV index (Moderate)
91
% chance of some rain
<10
mm of rainfall expected
20
°C wind chill
10
kph wind from E

Bar Harbor weather for Sunday 23rd August 2026

Expect isolated thunderstorms in Bar Harbor, Maine with a maximum temperature of 20°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 76% chance of some rain and a light breeze of 9 kph from the south-east.

20
°C maximum temperature
16
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
2
UV index (Low)
76
% chance of some rain
<20
mm of rainfall expected
20
°C wind chill
9
kph wind from SE

Bar Harbor weather for Monday 24th August 2026

Expect mostly cloudy with light rain in Bar Harbor, Maine with a maximum temperature of 22°C, maximum UV of 7 (High) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 35% chance of some rain and a light breeze of 9 kph from the south.

22
°C maximum temperature
17
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
7
UV index (High)
35
% chance of some rain
<2
mm of rainfall expected
22
°C wind chill
9
kph wind from S

Bar Harbor weather for Tuesday 25th August 2026

Expect broken clouds in Bar Harbor, Maine with a maximum temperature of 21°C, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-west.