S
M
T
W
T
F
S
30
99°
64°
31
100°
68°
1
101°
72°
2
100°
72°
3
100°
73°
4
101°
74°
5
103°
73°
6
103°
75°
7
100°
73°
8
104°
69°
9
103°
75°
10
98°
73°
11
86°
70°
12
98°
70°
13
97°
71°
14
96°
73°
15
98°
73°
16
99°
72°
17
100°
70°
18
99°
66°
19
101°
67°
20
97°
72°
21
90°
70°
22
89°
68°
23
90°
66°
24
86°
65°
25
87°
64°
26
88°
67°
27
88°
65°
28
89°
64°
29
80°
58°
30
85°
64°
1
85°
65°
2
76°
63°
3
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Hillcrest
Hillcrest's September 2026 forecast shows daily high temperatures ranging from 76° to 101°, with overnight lows between 58° and 72°. The average high for September is 90° with an average low of 66°. 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 Hillcrest. See also: October | November | December.
