S
M
T
W
T
F
S
30
89°
70°
31
90°
68°
1
91°
67°
2
89°
68°
3
91°
66°
4
89°
64°
5
89°
62°
6
88°
63°
7
87°
63°
8
88°
64°
9
88°
63°
10
89°
62°
11
87°
64°
12
86°
61°
13
84°
64°
14
Hist. Avg.
96°
73°
15
Hist. Avg.
95°
73°
16
Hist. Avg.
95°
72°
17
Hist. Avg.
95°
72°
18
Hist. Avg.
94°
72°
19
Hist. Avg.
94°
71°
20
Hist. Avg.
93°
71°
21
Hist. Avg.
93°
70°
22
Hist. Avg.
92°
70°
23
Hist. Avg.
92°
70°
24
Hist. Avg.
92°
69°
25
Hist. Avg.
91°
69°
26
Hist. Avg.
90°
68°
27
Hist. Avg.
90°
68°
28
Hist. Avg.
90°
67°
29
Hist. Avg.
89°
67°
30
Hist. Avg.
89°
66°
1
Hist. Avg.
88°
66°
2
Hist. Avg.
88°
66°
3
Hist. Avg.
87°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Blue Diamond
Blue Diamond's September 2026 forecast shows daily high temperatures ranging from 84° to 91°, with overnight lows between 61° and 70°. The average high for September is 88° with an average low of 65°. 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 Blue Diamond. See also: October | November | December.
