S
M
T
W
T
F
S
30
75°
42°
31
83°
46°
1
85°
54°
2
76°
54°
3
72°
42°
4
70°
48°
5
68°
50°
6
60°
46°
7
75°
43°
8
79°
44°
9
84°
46°
10
81°
51°
11
76°
43°
12
75°
51°
13
56°
46°
14
70°
38°
15
65°
48°
16
76°
46°
17
79°
48°
18
80°
48°
19
80°
47°
20
81°
49°
21
81°
47°
22
77°
43°
23
74°
45°
24
76°
46°
25
74°
45°
26
71°
44°
27
71°
42°
28
70°
43°
29
72°
40°
30
66°
40°
1
65°
35°
2
74°
44°
3
69°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Selah
Selah's September 2026 forecast shows daily high temperatures ranging from 65° to 81°, with overnight lows between 35° and 49°. The average high for September is 74° with an average low of 44°. 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 Selah. See also: October | November | December.