S
M
T
W
T
F
S
30
96°
70°
31
90°
66°
1
88°
60°
2
87°
57°
3
85°
59°
4
85°
59°
5
92°
57°
6
73°
67°
7
85°
69°
8
95°
70°
9
103°
74°
10
100°
76°
11
96°
73°
12
94°
69°
13
88°
69°
14
93°
62°
15
90°
60°
16
88°
59°
17
90°
60°
18
90°
58°
19
90°
61°
20
89°
64°
21
88°
63°
22
87°
62°
23
88°
62°
24
89°
61°
25
89°
62°
26
93°
63°
27
89°
59°
28
86°
54°
29
86°
57°
30
84°
58°
1
82°
57°
2
82°
54°
3
81°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Redlands
Redlands's September 2026 forecast shows daily high temperatures ranging from 81° to 93°, with overnight lows between 54° and 64°. The average high for September is 88° with an average low of 60°. 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 Redlands. See also: October | November | December.
