Portland, Maine 7-day weather forecast

Written by:
July 21, 2025
ESOlex // Shutterstock

Portland, Maine 7-day weather forecast

Stacker created the forecast for Portland, Maine using data from OpenWeather. This week's high is 94 °F on Friday, while the low is 54 °F on Tuesday. There are expected to be 3 sunny days and rain on 1 day this week.

There are currently no weather alerts.

Monday, July 21

- High of 78 °F, low of 61 °F (36% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 5:18 AM, sunset at 8:15 PM
1 / 6
Matusciac Alexandru // Shutterstock

Tuesday, July 22

- High of 74 °F, low of 54 °F (37% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 5:19 AM, sunset at 8:14 PM
2 / 6
supergenijalac // Shutterstock

Wednesday, July 23

- High of 76 °F, low of 56 °F (44% humidity)
- Mostly sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 5:20 AM, sunset at 8:13 PM
3 / 6
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Thursday, July 24

- High of 87 °F, low of 65 °F (52% humidity)
- Partly sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (7 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 5:21 AM, sunset at 8:12 PM
- New moon
4 / 6
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Friday, July 25

- High of 94 °F, low of 71 °F (47% humidity)
- Partly cloudy with a 61% chance of rain (1 mm of rain)
- Moderate breeze (13 mph wind)
- Sunrise at 5:22 AM, sunset at 8:11 PM
5 / 6
Maxim Grohotov // Shutterstock

Saturday, July 26

- High of 84 °F, low of 67 °F (36% humidity)
- Overcast with a 0% chance of rain
- Gentle breeze (11 mph wind)
- Sunrise at 5:23 AM, sunset at 8:10 PM
6 / 6
John Cartwright // Shutterstock

Sunday, July 27

- High of 79 °F, low of 65 °F (45% humidity)
- Overcast with a 0% chance of rain
- Gentle breeze (12 mph wind)
- Sunrise at 5:24 AM, sunset at 8:09 PM

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