Portland, Maine 7-day weather forecast

Written by:
March 9, 2026
ESOlex // Shutterstock

Portland, Maine 7-day weather forecast

Stacker created the forecast for Portland, Maine using data from OpenWeather. This week's high is 53 °F on Tuesday, while the low is 23 °F on Wednesday. There is expected to be 1 sunny day, snow on 1 day, and 3 days of rain this week.

NWS Gray ME has issued a wind advisory until Tuesday at 08:00 AM and a flood watch until Tuesday at 02:00 PM.

Monday, March 16

- High of 50 °F, low of 37 °F (99% humidity)
- Overcast with a 100% chance of rain (27 mm of rain)
- Fresh breeze (24 mph wind)
- Sunrise at 6:51 AM, sunset at 6:47 PM
1 / 6
Dmitry Naumov // Shutterstock

Tuesday, March 17

- High of 53 °F, low of 27 °F (39% humidity)
- Partly cloudy with a 100% chance of rain (2 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Strong breeze (26 mph wind)
- Sunrise at 6:49 AM, sunset at 6:49 PM
2 / 6
Ryzhkov Oleksandr // Shutterstock

Wednesday, March 18

- High of 34 °F, low of 23 °F (22% humidity)
- Partly cloudy with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 6:47 AM, sunset at 6:50 PM
- New moon
3 / 6
Nataliia K // Shutterstock

Thursday, March 19

- High of 37 °F, low of 29 °F (47% humidity)
- Partly sunny with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 6:46 AM, sunset at 6:51 PM
4 / 6
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Friday, March 20

- High of 47 °F, low of 32 °F (60% humidity)
- Overcast with a 0% chance of rain
- Gentle breeze (10 mph wind)
- Sunrise at 6:44 AM, sunset at 6:52 PM
5 / 6
Leonid Ikan // Shutterstock

Saturday, March 21

- High of 39 °F, low of 28 °F (31% humidity)
- Sunny with a 100% chance of snow (1 mm of snow)
- Moderate breeze (14 mph wind)
- Sunrise at 6:42 AM, sunset at 6:53 PM
6 / 6
Andrew Lever // Shutterstock

Sunday, March 22

- High of 41 °F, low of 32 °F (99% humidity)
- Overcast with a 100% chance of rain (1 mm of rain)
- Moderate breeze (16 mph wind)
- Sunrise at 6:40 AM, sunset at 6:55 PM

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