S
M
T
W
T
F
S
30
77°
57°
31
76°
56°
1
76°
57°
2
77°
58°
3
75°
61°
4
76°
57°
5
78°
57°
6
77°
56°
7
75°
55°
8
76°
54°
9
74°
55°
10
74°
57°
11
74°
54°
12
74°
54°
13
74°
53°
14
76°
56°
15
75°
59°
16
78°
58°
17
74°
52°
18
72°
51°
19
72°
52°
20
74°
57°
21
71°
51°
22
71°
53°
23
74°
56°
24
75°
57°
25
76°
56°
26
75°
48°
27
74°
49°
28
67°
48°
29
66°
47°
30
67°
47°
1
66°
47°
2
Hist. Avg.
69°
49°
3
Hist. Avg.
69°
49°
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 66° to 78°, with overnight lows between 47° and 61°. The average high for September is 74° with an average low of 54°. 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.
