Weather in Portland in October
How warm is it in Portland in October?
In October the typical daytime high in Portland is 16.0 °C on average, from 19.4 °C at the start to 12.7 °C at the end of the month.
That is 6.4 °C cooler than in September and 7.2 °C warmer than in November.
The last 10 years were 1.1 °C warmer than more than 40 years ago.
Click a day for more: afternoon and night, the usual range, records and how fast it is warming.
The average of the weather stations Gardiner (73 km), Nashua (138 km) and Blue Hill Coop (175 km); nearer ones count more.