Bar Harbor weather live forecast

Today's maximum temperature in Bar Harbor is expected to be 22°C. Select a day from the live weather forecast for Bar Harbor, Maine, USA for more weather parameters.

Friday
18th Sep
22

13

8

5
Saturday
19th Sep
15

10

11

5
Sunday
20th Sep
16

9

1

5
Monday
21st Sep
19

12

9

5
Tuesday
22nd Sep
16

9

11

5

5-day weather forecast updated at 04:01 on Friday 18th 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 Friday 18th September 2026

Expect sunshine and showers in Bar Harbor, Maine with a maximum temperature of 22°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 2-5 mm of rainfall expected with 11% chance of some rain and a gentle breeze of 15 kph from the north-west.

22
°C maximum temperature
13
°C minimum temperature
sunshine and showers
8
hours of sunshine
5
UV index (Moderate)
11
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
15
kph wind from NW

Bar Harbor weather for Saturday 19th September 2026

Expect clear skies in Bar Harbor, Maine with a maximum temperature of 15°C, maximum UV of 5 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north-west.

15
°C maximum temperature
10
°C minimum temperature
clear skies
11
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from NW

Bar Harbor weather for Sunday 20th September 2026

Expect mostly cloudy with light rain in Bar Harbor, Maine with a maximum temperature of 16°C, maximum UV of 5 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 25% chance of some rain and a light breeze of 12 kph from the south.

16
°C maximum temperature
9
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
5
UV index (Moderate)
25
% chance of some rain
<5
mm of rainfall expected
16
°C wind chill
12
kph wind from S

Bar Harbor weather for Monday 21st September 2026

Expect sunshine and showers in Bar Harbor, Maine with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 16% chance of some rain and a light breeze of 8 kph from the north.

19
°C maximum temperature
12
°C minimum temperature
sunshine and showers
9
hours of sunshine
5
UV index (Moderate)
16
% chance of some rain
<2
mm of rainfall expected
19
°C wind chill
8
kph wind from N

Bar Harbor weather for Tuesday 22nd September 2026

Expect scattered clouds in Bar Harbor, Maine with a maximum temperature of 16°C, maximum UV of 5 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north.