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
84°
50°
9
88°
61°
10
84°
53°
11
73°
53°
12
69°
54°
13
74°
50°
14
79°
52°
15
81°
56°
16
78°
55°
17
78°
53°
18
84°
58°
19
83°
59°
20
80°
59°
21
68°
51°
22
74°
51°
23
75°
51°
24
81°
50°
25
81°
55°
26
72°
52°
27
71°
52°
28
70°
48°
29
69°
43°
30
70°
47°
1
77°
52°
2
79°
52°
3
77°
51°
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 88°, with overnight lows between 43° and 61°. The average high for September is 77° with an average low of 53°. 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.
