S
M
T
W
T
F
S
30
88°
76°
31
87°
75°
1
88°
74°
2
88°
75°
3
89°
76°
4
88°
76°
5
88°
75°
6
89°
75°
7
88°
74°
8
88°
76°
9
89°
76°
10
88°
75°
11
88°
76°
12
89°
76°
13
89°
75°
14
90°
73°
15
90°
74°
16
91°
74°
17
90°
75°
18
90°
75°
19
91°
74°
20
91°
75°
21
90°
75°
22
91°
74°
23
91°
75°
24
90°
74°
25
91°
73°
26
90°
74°
27
91°
73°
28
90°
74°
29
91°
73°
30
90°
74°
1
90°
74°
2
91°
73°
3
91°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Palo Seco
Palo Seco's September 2026 forecast shows daily high temperatures ranging from 87° to 91°, with overnight lows between 73° and 76°. The average high for September is 90° with an average low of 75°. 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 Palo Seco. See also: October | November | December.
