The long-range forecast for Portland indicates that current temperatures are within the expected ranges for this time of year, aligning closely with the historical average of 24.3 °F. This suggests typical weather patterns without significant deviations.
Select a month and click on a day for more information
Saturday
Aug 1
25° / 17°
Sunday
Aug 2
26° / 17°
Monday
Aug 3
24° / 18°
Tuesday
Aug 4
27° / 17°
Wednesday
Aug 5
24° / 18°
Thursday
Aug 6
26° / 19°
Friday
Aug 7
30° / 21°
Saturday
Aug 8
28° / 21°
Sunday
Aug 9
28° / 21°
Monday
Aug 10
30° / 22°
Tuesday
Aug 11
23° / 18°
Wednesday
Aug 12
21° / 17°
Thursday
Aug 13
21° / 17°
Friday
Aug 14
22° / 17°
Saturday
Aug 15
18° / 16°
Sunday
Aug 16
20° / 14°
Monday
Aug 17
23° / 16°
Tuesday
Aug 18
23° / 17°
Wednesday
Aug 19
24° / 16°
Thursday
Aug 20
26° / 16°
Friday
Aug 21
23° / 16°
Saturday
Aug 22
24° / 15°
Sunday
Aug 23
23° / 15°
Monday
Aug 24
24° / 16°
Tuesday
Aug 25
24° / 17°
Wednesday
Aug 26
24° / 15°
Thursday
Aug 27
24° / 14°
Friday
Aug 28
21° / 14°
Saturday
Aug 29
22° / 15°
Sunday
Aug 30
23° / 15°
Monday
Aug 31
24° / 15°
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.
Weather in Portland for the next 30 days
Click on a day for an hourly weather forecast
Portland long range weather forecast - FAQ
Do you provide 30 days weather forecast for Portland?
You can see the next 30 weather forecast for Portland at the top of the page, the next 14 days (from today) are more accurate, while the other is based on average of previous years.
Can I see the weather forecast for a particular date in Portland?
Sure, you can select the date from the calendar above to view the forecast in Portland on that date.
How accurate is the long-range weather forecast for Portland?
Our long-range weather forecast for Portland is provided by using statistics from previous years. Although we cannot predict the weather months in advance, we can see an average.
Can I see a long-range weather forecast for different countries?
Yes, we provide a 14 day weather forecast and a long-range weather forecast for different countries and cities. You can search for a location in the search box at the top of the page.
More about the weather in Portland