As of 22:19 PDT

Bellevue, WA weather in September

67°

Bellevue, Saturday, 8 August, 22:19

Clear. Feels like 66°. High 84°, low 58°.

Pressure30.06 inHg

Wind9 mph NE

Humidity65%

Visibility6.2 mi

Dew point54°

See detailed hourly forecast

In September, Bellevue, WA averages a high of 68.4° and a low of 51.5°. About 2.9 inches of precipitation fall over the month (9 wet days). The record high is 93° (2017) and the record low 32° (1972). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	71.2°	54°	27%	87.4° (1987)	42.8° (1973)
2	72°	53.4°	30%	92.8° (1988)	42.8° (1960)
3	71.8°	53.6°	25%	91.8° (1988)	43.5° (1975)
4	71.6°	53.6°	22%	86.7° (2017)	44.1° (1965)
5	71.2°	53.6°	30%	93° (2017)	45.9° (2000)
6	70.9°	53.2°	28%	88.5° (2017)	42.3° (1960)
7	70.7°	53.2°	28%	88.2° (1981)	41.9° (1960)
8	70.2°	53.4°	30%	82.4° (1981)	43.7° (1976)
9	70.2°	52.7°	27%	86.4° (1963)	40.3° (1970)
10	70.2°	52.5°	30%	91° (2022)	42.6° (1970)
11	70°	52°	22%	83.8° (2011)	43° (1964)
12	69.3°	51.6°	22%	80.1° (2009)	42.1° (1970)
13	70°	50.9°	20%	81.9° (1999)	39.4° (1970)
14	69.6°	52°	27%	85.3° (1979)	40.8° (1971)
15	68.7°	51.8°	33%	85.3° (1981)	40.8° (1992)
16	67.8°	51.8°	40%	85.8° (2025)	40.1° (1965)
17	66.2°	52°	42%	80.2° (1991)	41.9° (1987)
18	66°	51.4°	37%	80.6° (1991)	40.8° (1965)
19	65.8°	50.9°	40%	81.5° (1999)	37.8° (1983)
20	66°	50.4°	43%	83.7° (1974)	39° (1983)
21	67.3°	49.5°	23%	84.7° (1974)	40.5° (1960)
22	67.3°	49.6°	30%	85.3° (1990)	40.5° (1993)
23	66.4°	50.4°	35%	80.4° (1989)	39° (2000)
24	66.7°	49.6°	32%	83.7° (1974)	36.1° (1970)
25	66°	50.5°	33%	83.7° (1991)	36.9° (1970)
26	65.8°	50°	37%	80.6° (2022)	40.1° (1972)
27	66.2°	49.3°	25%	83.3° (1967)	32° (1972)
28	66°	49.1°	27%	78.4° (2017)	38.3° (1983)
29	65.3°	49.5°	32%	78.8° (1992)	37° (1983)
30	64.4°	49.3°	33%	78.1° (1987)	37.6° (1971)