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.

Wednesday
29th Apr
9

6

0

1
Thursday
30th Apr
10

7

1

1
Friday
1st May
13

5

6

3
Saturday
2nd May
11

3

8

4
Sunday
3rd May
11

4

5

5

5-day weather forecast updated at 04:00 on Wednesday 29th 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 Wednesday 29th April 2026

Expect mostly cloudy with light rain in Portland, Maine with a maximum temperature of 9°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 68% chance of some rain and a gentle breeze of 15 kph from the east.

9
°C maximum temperature
6
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
1
UV index (Low)
68
% chance of some rain
<2
mm of rainfall expected
7
°C wind chill
15
kph wind from E

Portland weather for Thursday 30th April 2026

Expect cloudy with some rain in Portland, Maine with a maximum temperature of 10°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 100% chance of some rain and a light breeze of 12 kph from the east.

10
°C maximum temperature
7
°C minimum temperature
cloudy with some rain
1
hour of sunshine
1
UV index (Low)
100
% chance of some rain
<30
mm of rainfall expected
8
°C wind chill
12
kph wind from E

Portland weather for Friday 1st May 2026

Expect sunshine and showers in Portland, Maine with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 11% chance of some rain and a gentle breeze of 16 kph from the west.

13
°C maximum temperature
5
°C minimum temperature
sunshine and showers
6
hours of sunshine
3
UV index (Moderate)
11
% chance of some rain
<2
mm of rainfall expected
13
°C wind chill
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 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-west.

11
°C maximum temperature
3
°C minimum temperature
broken clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
13
kph wind from SW

Portland weather for Sunday 3rd May 2026

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