Portland, Maine 7-day weather forecast

Written by:
July 7, 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 84 °F on Monday, while the low is 55 °F on Friday. There are expected to be 0 sunny days and rain on 3 days this week.

NWS Gray ME has issued a heat advisory until Tuesday at 08:00 PM.

Monday, July 7

- High of 84 °F, low of 71 °F (40% humidity)
- Overcast with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 5:07 AM, sunset at 8:24 PM
1 / 6
otsphoto // Shutterstock

Tuesday, July 8

- High of 79 °F, low of 63 °F (73% humidity)
- Overcast with a 100% chance of rain (6 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 5:07 AM, sunset at 8:24 PM
2 / 6
Jurga Jot // Shutterstock

Wednesday, July 9

- High of 72 °F, low of 62 °F (84% humidity)
- Overcast with a 100% chance of rain (1 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (7 mph wind)
- Sunrise at 5:08 AM, sunset at 8:23 PM
3 / 6
Robert Schlie // Shutterstock

Thursday, July 10

- High of 67 °F, low of 58 °F (81% humidity)
- Overcast with a 68% chance of rain (1 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 5:09 AM, sunset at 8:23 PM
- Full moon
4 / 6
Ryzhkov Oleksandr // Shutterstock

Friday, July 11

- High of 68 °F, low of 55 °F (65% humidity)
- Partly cloudy with a 0% chance of rain
- Gentle breeze (9 mph wind)
- Sunrise at 5:09 AM, sunset at 8:22 PM
5 / 6
Nataliia K // Shutterstock

Saturday, July 12

- High of 70 °F, low of 57 °F (59% humidity)
- Partly cloudy with a 0% chance of rain
- Gentle breeze (9 mph wind)
- Sunrise at 5:10 AM, sunset at 8:22 PM
6 / 6
alisalipa // Shutterstock

Sunday, July 13

- High of 77 °F, low of 58 °F (46% humidity)
- Mostly cloudy with a 0% chance of rain
- Gentle breeze (11 mph wind)
- Sunrise at 5:11 AM, sunset at 8:21 PM

Trending Now