S
M
T
W
T
F
S
30
92°
44°
31
91°
48°
1
93°
47°
2
97°
46°
3
93°
45°
4
90°
43°
5
97°
48°
6
97°
48°
7
94°
50°
8
95°
50°
9
Hist. Avg.
73°
52°
10
Hist. Avg.
73°
52°
11
Hist. Avg.
73°
52°
12
Hist. Avg.
73°
52°
13
Hist. Avg.
73°
52°
14
Hist. Avg.
73°
52°
15
Hist. Avg.
73°
52°
16
Hist. Avg.
73°
52°
17
Hist. Avg.
73°
52°
18
Hist. Avg.
73°
52°
19
Hist. Avg.
73°
52°
20
Hist. Avg.
73°
52°
21
Hist. Avg.
73°
51°
22
Hist. Avg.
73°
51°
23
Hist. Avg.
73°
51°
24
Hist. Avg.
73°
51°
25
Hist. Avg.
73°
51°
26
Hist. Avg.
73°
51°
27
Hist. Avg.
73°
51°
28
Hist. Avg.
73°
51°
29
Hist. Avg.
73°
51°
30
Hist. Avg.
73°
51°
1
Hist. Avg.
73°
51°
2
Hist. Avg.
73°
51°
3
Hist. Avg.
73°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Pinnacles
Pinnacles's September 2026 forecast shows daily high temperatures ranging from 90° to 97°, with overnight lows between 43° and 50°. The average high for September is 94° with an average low of 47°. 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 Pinnacles. See also: October | November | December.