S
M
T
W
T
F
S
30
88°
69°
31
89°
68°
1
89°
69°
2
90°
62°
3
86°
63°
4
86°
66°
5
87°
67°
6
87°
67°
7
89°
68°
8
88°
66°
9
89°
63°
10
86°
61°
11
86°
60°
12
87°
61°
13
88°
60°
14
87°
57°
15
84°
62°
16
84°
59°
17
82°
61°
18
82°
60°
19
80°
60°
20
81°
59°
21
82°
58°
22
82°
62°
23
83°
62°
24
83°
61°
25
86°
62°
26
86°
62°
27
85°
57°
28
85°
55°
29
80°
56°
30
81°
59°
1
84°
60°
2
86°
61°
3
87°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mountain Springs
Mountain Springs's September 2026 forecast shows daily high temperatures ranging from 80° to 90°, with overnight lows between 55° and 69°. The average high for September is 85° with an average low of 62°. 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 Mountain Springs. See also: October | November | December.
