S
M
T
W
T
F
S
30
87°
62°
31
87°
69°
1
89°
69°
2
93°
63°
3
92°
62°
4
86°
63°
5
86°
62°
6
87°
61°
7
86°
60°
8
84°
62°
9
85°
64°
10
89°
67°
11
91°
68°
12
92°
68°
13
93°
63°
14
93°
59°
15
90°
59°
16
87°
60°
17
87°
61°
18
90°
62°
19
91°
64°
20
90°
60°
21
90°
60°
22
84°
61°
23
82°
57°
24
81°
56°
25
81°
56°
26
79°
57°
27
80°
58°
28
83°
60°
29
83°
55°
30
80°
55°
1
Hist. Avg.
84°
57°
2
Hist. Avg.
83°
56°
3
Hist. Avg.
83°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Dinuba
Dinuba's September 2026 forecast shows daily high temperatures ranging from 79° to 93°, with overnight lows between 55° and 69°. The average high for September is 87° with an average low of 61°. 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 Dinuba. See also: October | November | December.