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.

Sunday
16th Aug
23

16

6

6
Monday
17th Aug
18

17

0

3
Tuesday
18th Aug
23

17

3

1
Wednesday
19th Aug
24

17

8

4
Thursday
20th Aug
24

17

5

5

5-day weather forecast updated at 04:01 on Sunday 16th 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 Sunday 16th August 2026

Expect broken clouds in Bar Harbor, Maine with a maximum temperature of 23°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south.

23
°C maximum temperature
16
°C minimum temperature
broken clouds
6
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
23
°C wind chill
8
kph wind from S

Bar Harbor weather for Monday 17th August 2026

Expect mostly cloudy with rain in Bar Harbor, Maine with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 77% chance of some rain and a gentle breeze of 13 kph from the south.

18
°C maximum temperature
17
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
3
UV index (Moderate)
77
% chance of some rain
<10
mm of rainfall expected
18
°C wind chill
13
kph wind from S

Bar Harbor weather for Tuesday 18th August 2026

Expect fog in low lying areas in Bar Harbor, Maine with a maximum temperature of 23°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north-east.

23
°C maximum temperature
17
°C minimum temperature
fog in low lying areas
3
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
5
kph wind from NE

Bar Harbor weather for Wednesday 19th August 2026

Expect broken clouds in Bar Harbor, Maine with a maximum temperature of 24°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south.

24
°C maximum temperature
17
°C minimum temperature
broken clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
8
kph wind from S

Bar Harbor weather for Thursday 20th August 2026

Expect broken clouds in Bar Harbor, Maine with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the south-west.