South Portland weather — 10-day forecast
Temperature, rain, wind and feels-like in South Portland, hour by hour and over 10 days, with the seasonal normal for context.
Now
Reading from 23:00 · NOAA HRRR model
20 °C
Overcast
Feels like 22 °C
Next 12 h
- 2320°15 %
- 0019°15 %
- 0120°15 %
- 0219°15 %
- 0318°15 %
- 0419°15 %
- 0519°53 %
- 05:38Sunrise
- 0618°15 %
- 0718°15 %
- 0818°15 %
- 0918°15 %
- 1019°15 %
- 1119°15 %
↑ 20°23:00↓ 18°08:00
- Humidity
- 100 %
- Dew point
- 20 °C
- Gusts
- 5.3 km/h
- Clouds
- 100 %
- Pressure
- 1,015 hPa ↓
- Storm
- likely
Grid point 0.4 km away · 3.0 km grid · elevation 4 m
Air quality
The European air-quality index for the city, and the pollutants that set it.
Index set by Ozone
- Ozone
- 88.4µg/m³
- PM2.5
- 8.5µg/m³
- PM10
- 9.0µg/m³
- Nitrogen dioxide
- 4.7µg/m³
- Sulphur dioxide
- 0.6µg/m³
- Carbon monoxide
- 230.0µg/m³
- Dust (AOD)
- 0.00
Generated using Copernicus Atmosphere Monitoring Service information
Hour by hour
Step-by-step detail: temperature, wind, cloud cover and ultraviolet.
10 days
Each day's extremes and the chance of rain, out to the end of the run.
Rain probability (> 1 mm): 50 ECMWF ensemble members.
Today
Partly cloudy40 %
23°
20°
Sat
Thunderstorm84 %
20°
18°
Sun
Light drizzle84 %
24°
18°
Mon
Mainly clear30 %
25°
20°
Tue
Light rain42 %
22°
20°
Wed
Overcast42 %
24°
20°
Thu
Light drizzle0 mm
21°
19°
Fri
Light drizzle1 mm
28°
20°
Sat
Mainly clear
25°
17°
Sun
Clear sky0 mm
24°
16°
Sun and UV
Sunrise, sunset, day length and ultraviolet intensity.
- Sunrise
- 05:37
- Daylight
- 14 h 20
- Sunset
- 19:57
Radiation · 0.0 MJ/m²
Sea state
Sea state at the marine grid point closest to the city.
Significant height: the mean of the highest third of waves. Individual waves reach about twice it.
Data: ECMWF
Today in South Portland the mean temperature will be 20.7 °C — +1.2 °C against the normal for 7 August, measured from 1940 to 2026. (1,290 obs.)
Nearby cities
The climate around South Portland