S
M
T
W
T
F
S
30
86°
64°
31
86°
59°
1
84°
59°
2
80°
57°
3
81°
57°
4
85°
63°
5
85°
60°
6
84°
58°
7
80°
56°
8
80°
60°
9
81°
56°
10
80°
56°
11
81°
55°
12
80°
56°
13
79°
55°
14
78°
54°
15
79°
55°
16
78°
56°
17
81°
58°
18
82°
58°
19
81°
58°
20
79°
59°
21
Hist. Avg.
78°
53°
22
Hist. Avg.
77°
53°
23
Hist. Avg.
77°
52°
24
Hist. Avg.
76°
52°
25
Hist. Avg.
76°
51°
26
Hist. Avg.
76°
51°
27
Hist. Avg.
76°
50°
28
Hist. Avg.
75°
50°
29
Hist. Avg.
75°
50°
30
Hist. Avg.
75°
49°
1
Hist. Avg.
74°
49°
2
Hist. Avg.
74°
48°
3
Hist. Avg.
74°
48°
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 78° to 86°, with overnight lows between 54° and 64°. The average high for September is 81° with an average low of 58°. 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.
