S
M
T
W
T
F
S
30
95°
70°
31
94°
66°
1
95°
67°
2
92°
66°
3
86°
64°
4
88°
65°
5
93°
67°
6
93°
66°
7
94°
65°
8
94°
66°
9
93°
67°
10
90°
67°
11
87°
66°
12
86°
67°
13
86°
67°
14
89°
66°
15
85°
66°
16
85°
65°
17
86°
65°
18
89°
64°
19
88°
64°
20
87°
63°
21
89°
64°
22
91°
63°
23
89°
63°
24
88°
64°
25
88°
63°
26
86°
63°
27
82°
62°
28
82°
61°
29
81°
60°
30
82°
54°
1
82°
52°
2
78°
51°
3
77°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in East Mountain
East Mountain's September 2026 forecast shows daily high temperatures ranging from 77° to 95°, with overnight lows between 51° and 70°. The average high for September is 88° with an average low of 63°. 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 East Mountain. See also: October | November | December.
