S
M
T
W
T
F
S
30
81°
48°
31
89°
49°
1
77°
64°
2
71°
54°
3
72°
50°
4
73°
54°
5
75°
55°
6
66°
57°
7
77°
59°
8
85°
48°
9
89°
48°
10
86°
55°
11
79°
56°
12
71°
55°
13
66°
49°
14
74°
54°
15
73°
52°
16
80°
51°
17
81°
59°
18
82°
52°
19
84°
51°
20
86°
57°
21
80°
54°
22
77°
57°
23
76°
53°
24
76°
52°
25
73°
53°
26
77°
53°
27
75°
51°
28
76°
50°
29
83°
51°
30
68°
46°
1
68°
43°
2
74°
52°
3
70°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in The Dalles
The Dalles's September 2026 forecast shows daily high temperatures ranging from 68° to 86°, with overnight lows between 43° and 59°. The average high for September is 77° 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 The Dalles. See also: October | November | December.
