As of 03:21 PDT

Portland, OR weather in September

60°

Portland, Sunday, 9 August, 03:21

Mostly clear. Feels like 60°. High 85°, low 58°.

Pressure30.06 inHg

Wind2 mph N

Humidity74%

Visibility6.2 mi

Dew point52°

See detailed hourly forecast

In September, Portland, OR averages a high of 74.6° and a low of 53.4°. About 2.0 inches of precipitation fall over the month (7 wet days). The record high is 104° (1988) and the record low 36.1° (1972). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	78.1°	55.8°	20%	97.7° (1988)	45.9° (1973)
2	78.8°	55.4°	13%	104° (1988)	46.2° (1973)
3	78.3°	55.9°	18%	95.4° (1988)	45.3° (1964)
4	78.6°	55.8°	15%	99.5° (2017)	46° (2000)
5	77.7°	55.4°	15%	97.9° (2024)	46.6° (1969)
6	77.5°	55.4°	17%	95.5° (2024)	46.4° (1969)
7	77.4°	55.6°	17%	95.7° (2011)	44.6° (1960)
8	76.5°	54.5°	22%	90.7° (1963)	44.8° (1976)
9	76.8°	54.9°	20%	93.6° (1963)	41.2° (1970)
10	77.2°	54.9°	22%	95.9° (2011)	43° (1964)
11	76.8°	54.5°	20%	94.3° (2011)	46.2° (1999)
12	76.3°	54.3°	13%	91.2° (1975)	46.2° (1967)
13	76.6°	52.9°	17%	91.6° (1999)	41° (1970)
14	75.6°	53.8°	22%	90.7° (1995)	42.1° (1971)
15	74.3°	53.4°	18%	96.8° (1981)	44.2° (1969)
16	72.9°	53.1°	23%	90.3° (1994)	44.6° (1982)
17	71.8°	53.1°	30%	91.8° (2012)	40.8° (1965)
18	71.6°	53.4°	42%	92.1° (1991)	40.1° (1965)
19	71.4°	52.7°	35%	93.4° (1974)	40.3° (1983)
20	71.8°	52°	23%	93.2° (2014)	44.1° (1960)
21	73°	51.6°	20%	92.1° (1974)	41.5° (1993)
22	73.2°	51.6°	23%	94.6° (1987)	42.1° (1993)
23	72.7°	51.6°	22%	92.8° (1974)	41.5° (2000)
24	72.9°	51.6°	25%	94.3° (1974)	41.5° (1970)
25	71.8°	52.3°	37%	94.1° (1991)	39.4° (1970)
26	71.6°	51.6°	28%	90.1° (1967)	44.1° (1964)
27	72.3°	51.1°	20%	92.5° (2003)	36.1° (1972)
28	72.5°	51.1°	23%	87.3° (1989)	40.3° (1983)
29	71.4°	50.7°	28%	87.4° (1987)	38.3° (1983)
30	70.2°	50.7°	33%	90.5° (1987)	38.7° (1971)