Weather forecast for tomorrowSouth Portland, ME
Weather forecast for tomorrow
Monday Oct 19, 2026
- 57°F
- 41°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 7mphS 185°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:00 am EDT
- Sunset: 5:51 pm EDT
- details ▼
Tomorrow, on Monday, October 19, expect plenty of sunshine and only a few scattered clouds.
The temperature variation is predicted to range from a maximum of a moderate 57.2°F to a minimum of a wintry 41°F.
The predicted peak temperature will reflect the average October high of 56.3°F.
Sunrise will be at 7:00 am and sunset at 5:51 pm; tomorrow's daylight will last for 10h and 51min.
The temperature variation is predicted to range from a maximum of a moderate 57.2°F to a minimum of a wintry 41°F.
The predicted peak temperature will reflect the average October high of 56.3°F.
Sunrise will be at 7:00 am and sunset at 5:51 pm; tomorrow's daylight will last for 10h and 51min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 55°C.
Coldest hour: 6 am 37°C.
Coldest hour: 6 am 37°C.
Chance of precipitation
Highest chance: 9 pm 7%.
Hourly weather forecast
- 12 am
- 41°F
- Feels like:37°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphSSW 206°
- Humidity: 81%
- Pressure: 30.53"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 39°F
- Feels like:37°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphSW 216°
- Humidity: 86%
- Pressure: 30.53"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:37°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 3mphSW 222°
- Humidity: 87%
- Pressure: 30.53"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 37°F
- Feels like:37°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphWSW 247°
- Humidity: 89%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:00 am
- 8 am
- 41°F
- Feels like:41°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphWSW 245°
- Humidity: 82%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 50°F
- Feels like:50°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphSW 228°
- Humidity: 65%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 54°F
- Feels like:54°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphSSE 161°
- Humidity: 61%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 55°F
- Feels like:54°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphSSE 159°
- Humidity: 59%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 55°F
- Feels like:54°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 5mphSSE 157°
- Humidity: 59%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
Sunset: 5:51 pm
- 6 pm
- 50°F
- Feels like:50°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphSSE 147°
- Humidity: 69%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 8 pm
- 48°F
- Feels like:48°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 0mphSE 145°
- Humidity: 84%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 45°F
- Feels like:45°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 1mphENE 59°
- Humidity: 90%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, a combination of sun-filled and cloud-filled weather is expected.
The temperature will vary between a minimum of 37.4°F and a maximum of 55.4°F. The warmest part of the day will be from 1 pm to 4 pm.
The forecasted high will be close to the typical October maximum of 56.3°F. The expected low will be more consistent with what’s common in November than the current October average of 47.5°F.
The temperature will vary between a minimum of 37.4°F and a maximum of 55.4°F. The warmest part of the day will be from 1 pm to 4 pm.
The forecasted high will be close to the typical October maximum of 56.3°F. The expected low will be more consistent with what’s common in November than the current October average of 47.5°F.
Updated: Oct 18, 2026 @ 15:03:38 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Monday, mainly sunny skies with just a few high clouds are anticipated.
Tomorrow, the highest temperature will be 57.2°F, while the lowest temperature will be 41°F.
The highest temperature will be in line with the average maximum of 56.3°F in October. The lowest temperature will be moderately lower than the average low of 47.5°F.
The highest temperature will be in line with the average maximum of 56.3°F in October. The lowest temperature will be moderately lower than the average low of 47.5°F.
On Monday, in South Portland, sunrise will be at 7:00 am and sunset at 5:51 pm (EDT).
In South Portland, the length of the day tomorrow will be 10h and 51min.
