As of 09:30 PDT

Spokane Valley, WA weather in September

74°

Spokane Valley, Sunday, 9 August, 09:30

Clear. Feels like 73°. High 87°, low 54°.

Pressure29.94 inHg

Wind7.7 mph S

Humidity42%

Visibility6.2 mi

Dew point49°

See detailed hourly forecast

In September, Spokane Valley, WA averages a high of 73.2° and a low of 50.4°. About 1.0 inches of precipitation fall over the month (5 wet days). The record high is 100.6° (1988) and the record low 29.8° (2019). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	78.6°	55.2°	10%	98.8° (2025)	44.8° (1975)
2	78.1°	54°	10%	100.4° (2025)	44.6° (1999)
3	78.6°	54.1°	10%	100.6° (1988)	41.9° (1980)
4	78.8°	54.3°	8%	99° (1988)	44.1° (1965)
5	78.4°	54.5°	8%	95.9° (1988)	43.3° (1969)
6	77°	53.6°	15%	94.1° (2024)	41.5° (1960)
7	76.8°	52.9°	12%	94.5° (2024)	40.6° (1976)
8	76.1°	52.7°	13%	93.6° (2024)	41.9° (1962)
9	75.7°	52.5°	17%	91.9° (2011)	41.9° (1976)
10	75°	51.6°	10%	93.6° (2011)	39.7° (1964)
11	75°	52.2°	15%	92.8° (2011)	40.8° (1964)
12	74.3°	51.4°	5%	90.9° (2013)	38.1° (1970)
13	74.5°	51.1°	8%	89.6° (2013)	38.1° (1970)
14	74.7°	50.7°	13%	92.3° (2002)	35.6° (1970)
15	73.8°	50.5°	17%	90° (1998)	40.3° (1982)
16	72.5°	50.4°	13%	91.4° (1981)	34.5° (1965)
17	71.6°	50°	25%	94.8° (1981)	34.7° (1965)
18	70.7°	50.5°	27%	89.2° (1981)	35.4° (1965)
19	69.4°	49.3°	22%	88.7° (2008)	34.9° (1983)
20	68.5°	47.8°	27%	86.2° (1979)	35.4° (1983)
21	68.9°	47.3°	22%	89.1° (1967)	38.7° (1993)
22	69.8°	46.9°	13%	90.5° (1966)	35.6° (2017)
23	70.3°	47.8°	15%	91.2° (2001)	34.3° (2000)
24	70.9°	47.5°	17%	92.7° (2011)	32.7° (1984)
25	71.1°	48°	18%	91.4° (2001)	35.1° (1970)
26	69.6°	48°	17%	85.8° (1963)	34.2° (1972)
27	69.4°	47.3°	15%	88° (1963)	32° (1972)
28	69.8°	46.6°	20%	91.6° (1963)	33.1° (1984)
29	69.3°	46.9°	13%	84.2° (1992)	32.2° (1985)
30	68.7°	46.8°	17%	86.2° (1992)	29.8° (2019)