S
M
T
W
T
F
S
30
83°
60°
31
84°
58°
1
82°
61°
2
85°
61°
3
88°
57°
4
82°
57°
5
81°
58°
6
82°
56°
7
81°
55°
8
82°
58°
9
82°
54°
10
81°
55°
11
84°
53°
12
80°
58°
13
Hist. Avg.
86°
62°
14
Hist. Avg.
86°
62°
15
Hist. Avg.
86°
61°
16
Hist. Avg.
86°
61°
17
Hist. Avg.
85°
61°
18
Hist. Avg.
85°
61°
19
Hist. Avg.
85°
61°
20
Hist. Avg.
84°
60°
21
Hist. Avg.
84°
60°
22
Hist. Avg.
84°
60°
23
Hist. Avg.
84°
60°
24
Hist. Avg.
83°
60°
25
Hist. Avg.
83°
59°
26
Hist. Avg.
82°
59°
27
Hist. Avg.
82°
59°
28
Hist. Avg.
82°
58°
29
Hist. Avg.
82°
58°
30
Hist. Avg.
81°
58°
1
Hist. Avg.
81°
58°
2
Hist. Avg.
80°
57°
3
Hist. Avg.
80°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Spring Valley
Spring Valley's September 2026 forecast shows daily high temperatures ranging from 80° to 88°, with overnight lows between 53° and 61°. The average high for September is 83° with an average low of 57°. 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 Spring Valley. See also: October | November | December.
