Portland weather live forecast

Today's maximum temperature in Portland is expected to be 9°C. Select a day from the live weather forecast for Portland, Maine, USA for more weather parameters.

Thursday
30th Apr
9

6

0

1
Friday
1st May
13

5

5

6
Saturday
2nd May
11

3

4

5
Sunday
3rd May
11

4

0

4
Monday
4th May
14

3

4

6

5-day weather forecast updated at 04:00 on Thursday 30th April 2026 GMT

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The 5-day weather forecast for Maine (Portland) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Portland weather forecast by day

Below are the detailed weather forecasts for Portland for the next 5 days.

Portland weather for Thursday 30th April 2026

Expect cloudy with some rain in Portland, Maine with a maximum temperature of 9°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 97% chance of some rain and a light breeze of 11 kph from the east.

9
°C maximum temperature
6
°C minimum temperature
cloudy with some rain
0
hours of sunshine
1
UV index (Low)
97
% chance of some rain
<20
mm of rainfall expected
7
°C wind chill
11
kph wind from E

Portland weather for Friday 1st May 2026

Expect broken clouds in Portland, Maine with a maximum temperature of 13°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the west.

13
°C maximum temperature
5
°C minimum temperature
broken clouds
5
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from W

Portland weather for Saturday 2nd May 2026

Expect broken clouds in Portland, Maine with a maximum temperature of 11°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south.

11
°C maximum temperature
3
°C minimum temperature
broken clouds
4
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from S

Portland weather for Sunday 3rd May 2026

Expect overcast skies in Portland, Maine with a maximum temperature of 11°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north.

11
°C maximum temperature
4
°C minimum temperature
overcast skies
0
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
11
°C wind chill
11
kph wind from N

Portland weather for Monday 4th May 2026

Expect broken clouds in Portland, Maine with a maximum temperature of 14°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south.