S
M
T
W
T
F
S
30
74°
52°
31
86°
57°
1
74°
60°
2
63°
54°
3
65°
53°
4
71°
52°
5
75°
56°
6
75°
59°
7
71°
56°
8
72°
57°
9
75°
60°
10
77°
59°
11
79°
58°
12
76°
59°
13
75°
56°
14
74°
57°
15
73°
55°
16
69°
55°
17
69°
54°
18
70°
51°
19
69°
57°
20
68°
52°
21
68°
50°
22
69°
50°
23
67°
49°
24
66°
49°
25
66°
50°
26
68°
49°
27
72°
57°
28
65°
55°
29
66°
49°
30
72°
54°
1
66°
54°
2
64°
51°
3
64°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mt. Scott - Arleta
Mt. Scott - Arleta's September 2026 forecast shows daily high temperatures ranging from 63° to 79°, with overnight lows between 49° and 60°. The average high for September is 70° with an average low of 54°. 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 Mt. Scott - Arleta. See also: October | November | December.
