S
M
T
W
T
F
S
30
81°
43°
31
80°
37°
1
78°
36°
2
78°
38°
3
79°
39°
4
77°
35°
5
75°
35°
6
74°
36°
7
77°
34°
8
78°
37°
9
77°
36°
10
78°
35°
11
73°
33°
12
72°
31°
13
74°
39°
14
75°
32°
15
71°
30°
16
Hist. Avg.
80°
53°
17
Hist. Avg.
80°
52°
18
Hist. Avg.
79°
52°
19
Hist. Avg.
79°
52°
20
Hist. Avg.
78°
51°
21
Hist. Avg.
78°
51°
22
Hist. Avg.
77°
51°
23
Hist. Avg.
77°
50°
24
Hist. Avg.
76°
50°
25
Hist. Avg.
76°
50°
26
Hist. Avg.
76°
49°
27
Hist. Avg.
75°
49°
28
Hist. Avg.
75°
49°
29
Hist. Avg.
74°
48°
30
Hist. Avg.
74°
48°
1
Hist. Avg.
73°
47°
2
Hist. Avg.
72°
47°
3
Hist. Avg.
72°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in High Valley
High Valley's September 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 30° and 43°. The average high for September is 76° with an average low of 36°. 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 High Valley. See also: October | November | December.
