S
M
T
W
T
F
S
30
90°
66°
31
91°
67°
1
92°
64°
2
89°
63°
3
88°
63°
4
88°
62°
5
87°
62°
6
87°
63°
7
88°
63°
8
87°
62°
9
85°
61°
10
85°
61°
11
86°
63°
12
90°
63°
13
92°
64°
14
92°
59°
15
83°
58°
16
83°
58°
17
84°
59°
18
89°
59°
19
90°
60°
20
90°
62°
21
89°
63°
22
90°
63°
23
91°
65°
24
89°
63°
25
81°
57°
26
79°
57°
27
78°
59°
28
80°
60°
29
84°
59°
30
82°
58°
1
76°
56°
2
75°
55°
3
87°
58°
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 75° to 92°, with overnight lows between 55° and 67°. The average high for September is 86° with an average low of 61°. 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.
