S
M
T
W
T
F
S
30
86°
56°
31
91°
57°
1
91°
59°
2
86°
55°
3
84°
55°
4
85°
56°
5
85°
57°
6
86°
56°
7
85°
55°
8
86°
58°
9
85°
59°
10
86°
62°
11
87°
60°
12
87°
61°
13
86°
63°
14
90°
62°
15
91°
61°
16
91°
60°
17
90°
59°
18
90°
59°
19
89°
58°
20
87°
60°
21
89°
60°
22
89°
59°
23
88°
60°
24
84°
60°
25
80°
59°
26
79°
58°
27
80°
59°
28
81°
60°
29
82°
59°
30
81°
60°
1
83°
56°
2
81°
56°
3
85°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Pleasant Hill
Pleasant Hill's September 2026 forecast shows daily high temperatures ranging from 79° to 91°, with overnight lows between 55° and 63°. The average high for September is 86° with an average low of 59°. 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 Pleasant Hill. See also: October | November | December.
