As of 02:12 PDT

Mountlake Terrace, WA weather in September

57°

Mountlake Terrace, Sunday, 9 August, 02:12

Clear. Feels like 56°. High 77°, low 54°.

Pressure30.06 inHg

Wind2.6 mph NE

Humidity80%

Visibility6.2 mi

Dew point51°

See detailed hourly forecast

In September, Mountlake Terrace, WA averages a high of 66.3° and a low of 51.4°. About 3.1 inches of precipitation fall over the month (9 wet days). The record high is 92.5° (2017) and the record low 35.8° (1972). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	68.9°	53.6°	30%	84° (1987)	44.2° (1973)
2	69.4°	53.4°	30%	87.4° (1988)	42.6° (1960)
3	69.4°	53.1°	27%	88.2° (1988)	45.7° (1999)
4	69.1°	53.2°	25%	82.6° (1988)	44.6° (1965)
5	68.9°	53.1°	32%	92.5° (2017)	45.5° (2005)
6	68.5°	52.7°	30%	84.6° (2017)	43.9° (1969)
7	68.5°	52.7°	30%	83.1° (1981)	43.9° (1992)
8	68.2°	53.2°	33%	79.7° (2011)	45.5° (1962)
9	67.8°	52.7°	28%	83.1° (1963)	41° (1970)
10	68°	52.2°	30%	84° (2020)	44.8° (1972)
11	67.8°	52.2°	25%	80.8° (2011)	44.6° (1964)
12	67.1°	51.8°	22%	78.4° (2009)	43.3° (1967)
13	67.6°	51.1°	23%	79.2° (1988)	38.5° (1970)
14	67.6°	52°	23%	81.9° (1979)	42.4° (1971)
15	66.7°	51.8°	32%	80.6° (1967)	41.7° (1970)
16	66°	51.4°	38%	86.4° (2025)	39.6° (1992)
17	64.2°	51.6°	42%	77.9° (2025)	43.2° (1965)
18	64.2°	51.4°	38%	77.2° (1991)	42.1° (1965)
19	64°	50.7°	43%	78.1° (1999)	39.7° (1983)
20	64°	50.4°	42%	77.9° (1974)	43.3° (1968)
21	65.1°	50°	30%	80.2° (2014)	41.5° (1960)
22	65.3°	49.6°	30%	81° (1990)	41.9° (1960)
23	64.4°	50.5°	35%	77° (1989)	39.9° (1972)
24	64.6°	49.8°	30%	79.3° (1997)	37.6° (1970)
25	64.2°	50.5°	32%	79° (1991)	38.1° (1972)
26	64°	50°	40%	77° (2022)	42.4° (1972)
27	64°	49.6°	32%	79.7° (1967)	35.8° (1972)
28	63.9°	49.5°	30%	77.9° (2017)	40.8° (1999)
29	63.3°	49.6°	32%	74.8° (1992)	39.6° (1972)
30	62.6°	49.3°	33%	74.1° (1987)	39.9° (1971)