Portland Rainfall Forecast

Today 23 Aug
No Rain
Sun 24 Aug
No Rain
Mon 25 Aug
5%
Tue 26 Aug
5%
Wed 27 Aug
5%
Thu 28 Aug
10%
Fri 29 Aug
10%

Portland Rainfall Statistics

August Rainfall

Portland, Portland International Airport (5.6 miles)

Total Rainfall 2025
17.7in
Daily Average 2025
0.1in
Wettest Day 17 May, 2025
1.2in
Wet Days 2025
79/235 (34%)
Total Rainfall July
0.3in
Daily Average July
0.01in
Wettest Day 20 July, 2025
0.2in
Wet Days July
2/31 (6%)
Total Rainfall August
0.6in
Daily Average August
0.03in
Wettest Day 6 August, 2025
0.4in
Wet Days August
3/23 (13%)

Climate (2010–Present)

Portland, Portland International Airport (5.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

Annual Average 2020–2024
36.8in
Monthly Average 2020–2025
3in
Daily Average 2020–2025
0.1in
Wettest Day 26 December, 2022
2.1in

Get WillyWeather+ to remove ads