S
M
T
W
T
F
S
30
93°
65°
31
93°
65°
1
90°
64°
2
92°
63°
3
93°
63°
4
92°
65°
5
93°
65°
6
94°
66°
7
94°
66°
8
92°
65°
9
88°
65°
10
90°
64°
11
91°
65°
12
90°
66°
13
91°
65°
14
94°
66°
15
93°
65°
16
92°
63°
17
91°
62°
18
89°
65°
19
89°
64°
20
Hist. Avg.
89°
61°
21
Hist. Avg.
89°
61°
22
Hist. Avg.
89°
61°
23
Hist. Avg.
88°
61°
24
Hist. Avg.
88°
60°
25
Hist. Avg.
88°
60°
26
Hist. Avg.
88°
60°
27
Hist. Avg.
87°
60°
28
Hist. Avg.
87°
60°
29
Hist. Avg.
87°
59°
30
Hist. Avg.
87°
59°
1
Hist. Avg.
86°
59°
2
Hist. Avg.
86°
59°
3
Hist. Avg.
86°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Pasadena
Pasadena's September 2026 forecast shows daily high temperatures ranging from 88° to 94°, with overnight lows between 62° and 66°. The average high for September is 92° 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 Pasadena. See also: October | November | December.
