Portland weather live forecast

Today's maximum temperature in Portland is expected to be 15°C. Select a day from the live weather forecast for Portland, Maine, USA for more weather parameters.

Tuesday
14th Apr
15

8

7

6
Wednesday
15th Apr
11

8

0

3
Thursday
16th Apr
9

7

1

6
Friday
17th Apr
17

9

2

5
Saturday
18th Apr
10

6

0

3

5-day weather forecast updated at 04:00 on Tuesday 14th 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 Tuesday 14th April 2026

Expect isolated thunderstorms in Portland, Maine with a maximum temperature of 15°C, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 62% chance of some rain and a gentle breeze of 16 kph from the south-east.

15
°C maximum temperature
8
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
6
UV index (High)
62
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
16
kph wind from SE

Portland weather for Wednesday 15th April 2026

Expect mostly cloudy with light rain in Portland, Maine with a maximum temperature of 11°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 66% chance of some rain and a light breeze of 9 kph from the south-east.

11
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
3
UV index (Moderate)
66
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
9
kph wind from SE

Portland weather for Thursday 16th April 2026

Expect mostly cloudy with light rain in Portland, Maine with a maximum temperature of 9°C, maximum UV of 6 (High) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 62% chance of some rain and a light breeze of 8 kph from the south-east.

9
°C maximum temperature
7
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
6
UV index (High)
62
% chance of some rain
<5
mm of rainfall expected
8
°C wind chill
8
kph wind from SE

Portland weather for Friday 17th April 2026

Expect mostly cloudy with light rain in Portland, Maine with a maximum temperature of 17°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 46% chance of some rain and a light breeze of 9 kph from the east.

17
°C maximum temperature
9
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
5
UV index (Moderate)
46
% chance of some rain
<5
mm of rainfall expected
17
°C wind chill
9
kph wind from E

Portland weather for Saturday 18th April 2026

Expect overcast with light rain in Portland, Maine with a maximum temperature of 10°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 18% chance of some rain and a gentle breeze of 13 kph from the east.