As of 18:23 PDT

Cornelius, OR weather in September

87°

Cornelius, Saturday, 8 August, 18:23

Clear. Feels like 85°. High 88°, low 58°.

Pressure30.00 inHg

Wind9 mph NW

Humidity32%

Visibility6.2 mi

Dew point54°

See detailed hourly forecast

In September, Cornelius, OR averages a high of 74.1° and a low of 53.6°. About 1.9 inches of precipitation fall over the month (7 wet days). The record high is 101.1° (1988) and the record low 36.7° (1972). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	77.4°	55.4°	18%	94.5° (1988)	44.1° (1973)
2	78.4°	55.4°	13%	101.1° (1988)	44.8° (1960)
3	77.9°	55.9°	18%	96.8° (2017)	44.8° (1964)
4	78.3°	55.4°	17%	100.6° (2017)	46.6° (2015)
5	77.2°	55°	12%	98.6° (2024)	44.2° (1969)
6	77.4°	55°	15%	94.8° (2024)	44.8° (1960)
7	76.8°	55.4°	17%	93.9° (2011)	44.2° (1971)
8	75.9°	54.7°	22%	91.4° (1993)	45.9° (1985)
9	75.9°	55.2°	18%	91° (1963)	44.2° (1964)
10	76.8°	55.2°	17%	95.5° (2011)	45.9° (1972)
11	76.3°	54.9°	18%	96.3° (2011)	46.2° (2012)
12	75.7°	54.1°	15%	87.4° (1975)	45° (1967)
13	76.1°	53.4°	17%	89.8° (1999)	43.3° (1970)
14	75°	54.5°	22%	89.6° (1995)	43° (1970)
15	73.9°	53.6°	20%	94.3° (1981)	42.8° (1970)
16	72.7°	53.2°	27%	90.1° (2008)	42.8° (2021)
17	71.1°	53.4°	30%	89.8° (1991)	42.8° (1965)
18	71.4°	53.4°	38%	90.9° (1991)	40.5° (1978)
19	71.4°	52.5°	33%	90.9° (1974)	40.6° (1983)
20	71.4°	52°	25%	90.5° (1974)	42.1° (1968)
21	72.7°	52.2°	17%	90° (1974)	42.1° (1970)
22	72.7°	52.3°	22%	91.6° (1987)	43.7° (1961)
23	72.3°	52°	20%	90.7° (1974)	41.9° (1972)
24	72.7°	51.8°	28%	91.4° (1974)	38.8° (1970)
25	71.4°	53.1°	35%	92.5° (1991)	39.7° (1972)
26	71.1°	52°	23%	87.3° (1967)	39° (1972)
27	71.8°	51.6°	17%	90.1° (2003)	36.7° (1972)
28	72.1°	51.8°	20%	86.4° (2003)	41.4° (1983)
29	70.5°	51.8°	30%	86.7° (1993)	39.9° (2019)
30	70°	51.1°	27%	90.3° (1987)	37.9° (1971)