S
M
T
W
T
F
S
30
94°
64°
31
94°
64°
1
91°
63°
2
93°
63°
3
94°
62°
4
93°
63°
5
93°
62°
6
92°
62°
7
93°
61°
8
93°
63°
9
92°
63°
10
93°
62°
11
93°
63°
12
92°
62°
13
92°
62°
14
84°
55°
15
85°
56°
16
85°
60°
17
91°
61°
18
93°
59°
19
91°
58°
20
90°
59°
21
91°
60°
22
90°
54°
23
87°
55°
24
85°
58°
25
87°
60°
26
90°
59°
27
90°
59°
28
89°
57°
29
86°
55°
30
88°
54°
1
87°
55°
2
79°
49°
3
79°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mendota
Mendota's September 2026 forecast shows daily high temperatures ranging from 79° to 94°, with overnight lows between 48° and 64°. The average high for September is 90° 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 Mendota. See also: October | November | December.
