S
M
T
W
T
F
S
30
75°
51°
31
86°
49°
1
71°
58°
2
65°
57°
3
64°
53°
4
70°
53°
5
73°
51°
6
65°
56°
7
74°
54°
8
84°
48°
9
88°
50°
10
N/A
11
72°
52°
12
67°
54°
13
67°
52°
14
74°
49°
15
79°
53°
16
87°
56°
17
88°
60°
18
85°
56°
19
76°
56°
20
74°
55°
21
76°
53°
22
79°
55°
23
79°
55°
24
84°
56°
25
67°
54°
26
65°
50°
27
66°
47°
28
66°
47°
29
65°
45°
30
65°
45°
1
69°
52°
2
69°
51°
3
66°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Washougal
Washougal's September 2026 forecast shows daily high temperatures ranging from 65° to 88°, with overnight lows between 45° and 60°. The average high for September is 73° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Washougal. See also: October | November | December.
