The long-range forecast for Portland reveals lower temperatures than usual for this time of the year, dipping to 13°. In the coming days, the forecasted temperatures are expected to be on average -2.5 °C lower than the average of the last few years.
Select a month and click on a day for more information:
Thursday
Oct 1
18° / 10°
Friday
Oct 2
17° / 9°
Saturday
Oct 3
17° / 9°
Sunday
Oct 4
16° / 10°
Monday
Oct 5
17° / 10°
Tuesday
Oct 6
17° / 9°
Wednesday
Oct 7
18° / 12°
Thursday
Oct 8
16° / 9°
Friday
Oct 9
14° / 7°
Saturday
Oct 10
16° / 7°
Sunday
Oct 11
16° / 8°
Monday
Oct 12
16° / 8°
Tuesday
Oct 13
15° / 8°
Wednesday
Oct 14
16° / 9°
Thursday
Oct 15
14° / 8°
Friday
Oct 16
15° / 8°
Saturday
Oct 17
13° / 7°
Sunday
Oct 18
13° / 7°
Monday
Oct 19
15° / 6°
Tuesday
Oct 20
14° / 7°
Wednesday
Oct 21
17° / 9°
Thursday
Oct 22
17° / 9°
Friday
Oct 23
14° / 9°
Saturday
Oct 24
14° / 8°
Sunday
Oct 25
13° / 8°
Monday
Oct 26
12° / 8°
Tuesday
Oct 27
13° / 7°
Wednesday
Oct 28
13° / 6°
Thursday
Oct 29
10° / 5°
Friday
Oct 30
11° / 6°
Saturday
Oct 31
14° / 8°
Portland 30 days weather forecast
Check out our estimated 30 days weather forecast for Portland, this data is based on the average weather in Portland in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Portland next to the desired date.