S
M
T
W
T
F
S
30
96°
68°
31
97°
69°
1
97°
67°
2
92°
61°
3
91°
61°
4
Hist. Avg.
95°
64°
5
Hist. Avg.
95°
64°
6
Hist. Avg.
94°
63°
7
Hist. Avg.
94°
63°
8
Hist. Avg.
94°
63°
9
Hist. Avg.
94°
63°
10
Hist. Avg.
93°
63°
11
Hist. Avg.
93°
62°
12
Hist. Avg.
93°
62°
13
Hist. Avg.
92°
62°
14
Hist. Avg.
92°
62°
15
Hist. Avg.
92°
61°
16
Hist. Avg.
92°
61°
17
Hist. Avg.
91°
61°
18
Hist. Avg.
91°
60°
19
Hist. Avg.
90°
60°
20
Hist. Avg.
90°
60°
21
Hist. Avg.
90°
60°
22
Hist. Avg.
89°
59°
23
Hist. Avg.
89°
59°
24
Hist. Avg.
89°
59°
25
Hist. Avg.
88°
58°
26
Hist. Avg.
88°
58°
27
Hist. Avg.
87°
58°
28
Hist. Avg.
87°
57°
29
Hist. Avg.
87°
57°
30
Hist. Avg.
86°
56°
1
Hist. Avg.
86°
56°
2
Hist. Avg.
86°
56°
3
Hist. Avg.
85°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Hesperia
Hesperia's September 2026 forecast shows daily high temperatures ranging from 91° to 97°, with overnight lows between 61° and 69°. The average high for September is 95° 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 Hesperia. See also: October | November | December.