Monthly Historical AveragesSouth Portland, ME
Average Temperature
High
11°
Feels 10
Low
3°
Feels 0
Average Precipitation
10 Days
78.3mm
3.8cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastFriday, April 17, 2026
Day
17°Feels 17
Wind
14 km/h NE
Gust
21 km/h
Humidity
68%
P.O.P
70%
Rain
~1 mm
Night
8°Feels 6
Wind
12 km/h N
Gust
18 km/h
Humidity
93%
P.O.P
20%
Historical AveragesApr 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity