S
M
T
W
T
F
S
30
74°
54°
31
75°
53°
1
74°
54°
2
73°
52°
3
73°
52°
4
76°
55°
5
77°
56°
6
73°
57°
7
73°
52°
8
77°
50°
9
72°
57°
10
76°
59°
11
78°
56°
12
79°
56°
13
74°
49°
14
71°
52°
15
70°
48°
16
69°
48°
17
67°
54°
18
71°
51°
19
70°
54°
20
69°
46°
21
73°
45°
22
65°
42°
23
73°
53°
24
75°
54°
25
Hist. Avg.
69°
47°
26
Hist. Avg.
69°
47°
27
Hist. Avg.
68°
46°
28
Hist. Avg.
68°
46°
29
Hist. Avg.
68°
46°
30
Hist. Avg.
67°
45°
1
Hist. Avg.
67°
45°
2
Hist. Avg.
66°
45°
3
Hist. Avg.
66°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Mendota
Mendota's September 2026 forecast shows daily high temperatures ranging from 65° to 79°, with overnight lows between 42° and 59°. The average high for September is 73° with an average low of 52°. 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.
