S
M
T
W
T
F
S
30
79°
50°
31
79°
52°
1
78°
56°
2
77°
57°
3
77°
54°
4
76°
53°
5
76°
50°
6
75°
47°
7
76°
46°
8
75°
47°
9
76°
46°
10
78°
45°
11
79°
52°
12
73°
45°
13
75°
52°
14
77°
55°
15
Hist. Avg.
82°
49°
16
Hist. Avg.
81°
49°
17
Hist. Avg.
81°
49°
18
Hist. Avg.
80°
48°
19
Hist. Avg.
80°
48°
20
Hist. Avg.
80°
48°
21
Hist. Avg.
80°
48°
22
Hist. Avg.
79°
47°
23
Hist. Avg.
79°
47°
24
Hist. Avg.
78°
47°
25
Hist. Avg.
78°
46°
26
Hist. Avg.
78°
46°
27
Hist. Avg.
77°
46°
28
Hist. Avg.
77°
45°
29
Hist. Avg.
76°
45°
30
Hist. Avg.
76°
45°
1
Hist. Avg.
75°
44°
2
Hist. Avg.
75°
44°
3
Hist. Avg.
74°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in White Salmon
White Salmon's September 2026 forecast shows daily high temperatures ranging from 73° to 79°, with overnight lows between 45° and 57°. The average high for September is 77° with an average low of 50°. 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 White Salmon. See also: October | November | December.