S
M
T
W
T
F
S
30
92°
58°
31
90°
57°
1
81°
55°
2
84°
53°
3
86°
56°
4
83°
60°
5
87°
56°
6
89°
55°
7
92°
55°
8
96°
57°
9
102°
64°
10
105°
69°
11
100°
65°
12
96°
60°
13
84°
58°
14
87°
52°
15
90°
51°
16
85°
52°
17
83°
54°
18
88°
55°
19
92°
58°
20
90°
55°
21
86°
56°
22
90°
58°
23
95°
61°
24
93°
60°
25
93°
61°
26
83°
56°
27
82°
55°
28
84°
55°
29
85°
56°
30
83°
55°
1
87°
58°
2
85°
58°
3
87°
58°
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 82° to 95°, with overnight lows between 52° and 61°. The average high for September is 87° with an average low of 57°. 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.
