S
M
T
W
T
F
S
30
89°
69°
31
89°
67°
1
86°
64°
2
84°
64°
3
86°
65°
4
88°
66°
5
88°
67°
6
86°
65°
7
83°
63°
8
83°
63°
9
85°
61°
10
82°
61°
11
82°
62°
12
83°
61°
13
81°
60°
14
80°
60°
15
81°
61°
16
82°
60°
17
81°
62°
18
84°
62°
19
83°
62°
20
80°
63°
21
Hist. Avg.
82°
61°
22
Hist. Avg.
81°
61°
23
Hist. Avg.
81°
60°
24
Hist. Avg.
81°
60°
25
Hist. Avg.
80°
60°
26
Hist. Avg.
80°
59°
27
Hist. Avg.
80°
59°
28
Hist. Avg.
79°
59°
29
Hist. Avg.
79°
58°
30
Hist. Avg.
79°
58°
1
Hist. Avg.
78°
57°
2
Hist. Avg.
78°
57°
3
Hist. Avg.
78°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Pleasant Hill
Pleasant Hill's September 2026 forecast shows daily high temperatures ranging from 80° to 89°, with overnight lows between 60° and 69°. The average high for September is 84° with an average low of 63°. 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.
