Weather forecast for today
South Portland, ME

Weather forecast for today

Sunday, May 18.

Showers Early
5:10 am

8:04 pm
EDT
Showers Early
min.52°F
  • Wind: 11mph WNW
  • Humidity: 73%
  • Precip. probability: 43%
  • Precipitation: 0.04"
  • UV index: 0
In South Portland, during the afternoon and for the rest of the day, expect early showers, with the rain clearing by noon.
Minimal precipitation is forecasted for today. The lowest temperature will be a cool 51.8°F.
Sunrise was at 5:10 am and sunset will be at 8:04 pm; the daylight will last for 14h and 53min.

Current condition

Mostly Cloudy
4:17 pm EDT
Mostly Cloudy
  • 68°F
  • Feels like: 68°F
  • Wind: 10mph W
  • Humidity: 57%
  • Dewpoint: 52°F
  • Pressure: 29.37"Hg
  • Precipitation: 0"
  • Visibility: 10mi
  • UV index: 2
In South Portland, currently, overcast conditions are keeping the sky mostly cloudy.
The temperature is an agreeable 68°F.

Weather radar - South Portland, ME

Doppler radar displays precipitation for the past 2h and forecasts the next 30min

Frequently asked questions

What is the current temperature?
Currently (4:17 pm EDT) it is 68°F in South Portland.
What is the weather forecast for South Portland for today?
Today, early showers will give way to drier weather by midday.
Will it rain today?
Today, there is a low probability of minimal rainfall in South Portland.
What time are sunrise and sunset today?
On Sunday, in South Portland, sunrise was at 5:10 am and sunset will be at 8:04 pm (EDT).
How long is the day today?
In South Portland, Maine, the length of the day today will be 14h and 53min.

Hourly weather forecast

5 pm
  • 66°F
  • Feels like:
    66°F
Few Showers
Few Showers
  • Wind: 8mph W
  • Pressure: 29.35"Hg
  • Humidity: 60%
  • Precip. probability: 34%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 66°F
  • Feels like:
    66°F
Showers
Showers
  • Wind: 6mph WNW
  • Pressure: 29.35"Hg
  • Humidity: 62%
  • Precip. probability: 39%
  • Precipitation: 0.04"
  • Visibility: 10mi
7 pm
  • 64°F
  • Feels like:
    64°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph WNW
  • Pressure: 29.38"Hg
  • Humidity: 64%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 61°F
  • Feels like:
    61°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph WNW
  • Pressure: 29.38"Hg
  • Humidity: 74%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:04 pm
9 pm
  • 59°F
  • Feels like:
    57°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph WNW
  • Pressure: 29.41"Hg
  • Humidity: 77%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
10 pm
  • 57°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Wind: 8mph WNW
  • Pressure: 29.41"Hg
  • Humidity: 80%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
11 pm
  • 57°F
  • Feels like:
    55°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 7mph WNW
  • Pressure: 29.41"Hg
  • Humidity: 81%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
12 am
  • 57°F
  • Feels like:
    55°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 7mph WNW
  • Pressure: 29.41"Hg
  • Humidity: 81%
  • Precip. probability: 10%
  • Precipitation: 0"
  • Visibility: 10mi
1 am
  • 57°F
  • Feels like:
    54°F
Cloudy
Cloudy
  • Wind: 10mph WNW
  • Pressure: 29.41"Hg
  • Humidity: 80%
  • Precip. probability: 11%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 55°F
  • Feels like:
    54°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 10mph NW
  • Pressure: 29.44"Hg
  • Humidity: 79%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
During the afternoon and for the rest of the day, a combination of cloudy and showery weather is expected.
With a probability of 39%, minimal rainfall is expected around 6 pm.
The temperature will be between a maximum of 66.2°F and a minimum of 57.2°F.
Updated: May 18, 2025 @ 20:17:53 UTC
Published by: Weather Atlas | About Us
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Weather Forecasting & Climate

South Portland, Maine, USA

  • en: South Portland, Maine, USA
  • es: South Portland, Maine, EE.UU.
  • hr: Saut Portland, Mejn, SAD
  • sr: Saut Portland, Mejn, SAD
  • zh: 南波特兰, 缅因州, 美国
  • Latitude: 43.641472°
  • Longitude: -70.240881°
  • Elevation: 26 ft
  • Current time: 4:17pm EDT
  • Sunrise: 5:10 am EDT
  • Sunset: 8:04 pm EDT
  • Timezone: America/New_York
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