
ESOlex // Shutterstock
Portland, Maine 7-day weather forecast
Stacker created the forecast for Portland, Maine using data from OpenWeather. This week's high is 62 °F on Sunday, while the low is 43 °F on Thursday. There are expected to be 0 sunny days and rain on 6 days this week.
There are currently no weather alerts.
Monday, May 19
- High of 56 °F, low of 46 °F (75% humidity)- Overcast with a 100% chance of rain (2 mm of rain)
- Moderate breeze (15 mph wind)
- Sunrise at 5:11 AM, sunset at 8:03 PM
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1 / 6
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Tuesday, May 20
- High of 52 °F, low of 46 °F (66% humidity)
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 5:10 AM, sunset at 8:04 PM
- Last quarter moon
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 5:10 AM, sunset at 8:04 PM
- Last quarter moon

2 / 6
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Wednesday, May 21
- High of 49 °F, low of 46 °F (67% humidity)
- Overcast with a 36% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 5:10 AM, sunset at 8:05 PM
- Overcast with a 36% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 5:10 AM, sunset at 8:05 PM

3 / 6
Jaromir Chalabala // Shutterstock
Thursday, May 22
- High of 47 °F, low of 43 °F (94% humidity)
- Overcast with a 100% chance of rain (29 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Fresh breeze (22 mph wind)
- Sunrise at 5:09 AM, sunset at 8:06 PM
- Overcast with a 100% chance of rain (29 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Fresh breeze (22 mph wind)
- Sunrise at 5:09 AM, sunset at 8:06 PM

4 / 6
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Friday, May 23
- High of 47 °F, low of 43 °F (93% humidity)
- Overcast with a 100% chance of rain (4 mm of rain)
- Moderate breeze (15 mph wind)
- Sunrise at 5:08 AM, sunset at 8:07 PM
- Overcast with a 100% chance of rain (4 mm of rain)
- Moderate breeze (15 mph wind)
- Sunrise at 5:08 AM, sunset at 8:07 PM

5 / 6
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Saturday, May 24
- High of 52 °F, low of 44 °F (69% humidity)
- Overcast with a 92% chance of rain (2 mm of rain)
- Gentle breeze (11 mph wind)
- Sunrise at 5:07 AM, sunset at 8:08 PM
- Overcast with a 92% chance of rain (2 mm of rain)
- Gentle breeze (11 mph wind)
- Sunrise at 5:07 AM, sunset at 8:08 PM
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6 / 6
Valeriy Boyarskiy // Shutterstock
Sunday, May 25
- High of 62 °F, low of 46 °F (57% humidity)
- Mostly cloudy with a 77% chance of rain (1 mm of rain)
- Gentle breeze (9 mph wind)
- Sunrise at 5:06 AM, sunset at 8:09 PM
- Mostly cloudy with a 77% chance of rain (1 mm of rain)
- Gentle breeze (9 mph wind)
- Sunrise at 5:06 AM, sunset at 8:09 PM