S
M
T
W
T
F
S
30
92°
58°
31
90°
57°
1
91°
58°
2
92°
59°
3
94°
59°
4
94°
61°
5
93°
61°
6
95°
60°
7
95°
61°
8
94°
61°
9
93°
60°
10
89°
60°
11
87°
61°
12
92°
61°
13
93°
62°
14
94°
61°
15
93°
60°
16
91°
58°
17
90°
59°
18
91°
60°
19
93°
60°
20
85°
51°
21
93°
61°
22
92°
60°
23
Hist. Avg.
89°
56°
24
Hist. Avg.
88°
56°
25
Hist. Avg.
88°
56°
26
Hist. Avg.
88°
56°
27
Hist. Avg.
88°
56°
28
Hist. Avg.
87°
55°
29
Hist. Avg.
87°
55°
30
Hist. Avg.
87°
55°
1
Hist. Avg.
86°
55°
2
Hist. Avg.
86°
54°
3
Hist. Avg.
86°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Manteca
Manteca's September 2026 forecast shows daily high temperatures ranging from 85° to 95°, with overnight lows between 51° and 62°. The average high for September is 92° with an average low of 60°. 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 Manteca. See also: October | November | December.
