S
M
T
W
T
F
S
30
93°
63°
31
97°
63°
1
97°
65°
2
96°
64°
3
93°
64°
4
90°
63°
5
95°
64°
6
97°
64°
7
97°
63°
8
96°
64°
9
96°
61°
10
92°
56°
11
89°
55°
12
89°
54°
13
88°
58°
14
87°
59°
15
90°
58°
16
92°
60°
17
91°
63°
18
94°
64°
19
85°
64°
20
86°
63°
21
93°
63°
22
93°
62°
23
91°
62°
24
90°
61°
25
92°
61°
26
91°
60°
27
91°
60°
28
85°
59°
29
84°
61°
30
86°
61°
1
90°
62°
2
92°
61°
3
91°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Yuba City
Yuba City's September 2026 forecast shows daily high temperatures ranging from 84° to 97°, with overnight lows between 54° and 65°. The average high for September is 91° 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 Yuba City. See also: October | November | December.
