S
M
T
W
T
F
S
30
79°
59°
31
73°
56°
1
81°
55°
2
82°
61°
3
87°
61°
4
91°
68°
5
90°
64°
6
90°
62°
7
87°
63°
8
91°
58°
9
90°
59°
10
88°
55°
11
91°
57°
12
89°
64°
13
90°
69°
14
88°
64°
15
83°
60°
16
80°
59°
17
68°
61°
18
83°
58°
19
75°
56°
20
77°
50°
21
81°
51°
22
83°
55°
23
77°
57°
24
81°
57°
25
79°
54°
26
83°
58°
27
81°
60°
28
72°
54°
29
69°
56°
30
75°
54°
1
81°
53°
2
80°
54°
3
76°
52°
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 69° to 83°, with overnight lows between 52° and 60°. The average high for September is 78° with an average low of 55°. 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.
