S
M
T
W
T
F
S
30
94°
73°
31
95°
73°
1
92°
71°
2
93°
72°
3
90°
73°
4
91°
72°
5
89°
72°
6
89°
73°
7
92°
73°
8
92°
72°
9
91°
71°
10
93°
73°
11
93°
72°
12
92°
73°
13
93°
72°
14
92°
70°
15
88°
71°
16
88°
71°
17
89°
70°
18
87°
71°
19
86°
71°
20
87°
70°
21
88°
71°
22
87°
70°
23
86°
67°
24
91°
66°
25
85°
66°
26
85°
67°
27
88°
69°
28
Hist. Avg.
88°
64°
29
Hist. Avg.
87°
64°
30
Hist. Avg.
87°
63°
1
Hist. Avg.
87°
63°
2
Hist. Avg.
87°
63°
3
Hist. Avg.
86°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Fresno
Fresno's September 2026 forecast shows daily high temperatures ranging from 85° to 95°, with overnight lows between 66° and 73°. The average high for September is 90° with an average low of 71°. 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 Fresno. See also: October | November | December.
