S
M
T
W
T
F
S
30
95°
64°
31
95°
64°
1
94°
63°
2
95°
64°
3
91°
63°
4
91°
64°
5
94°
64°
6
94°
63°
7
93°
64°
8
95°
64°
9
95°
63°
10
94°
62°
11
92°
62°
12
94°
63°
13
94°
62°
14
95°
63°
15
94°
62°
16
93°
61°
17
92°
60°
18
90°
60°
19
87°
59°
20
85°
60°
21
91°
61°
22
92°
60°
23
89°
60°
24
88°
59°
25
90°
59°
26
90°
60°
27
89°
59°
28
90°
60°
29
90°
59°
30
89°
58°
1
83°
57°
2
84°
58°
3
88°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Patterson
Patterson's September 2026 forecast shows daily high temperatures ranging from 83° to 95°, with overnight lows between 57° and 64°. 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 Patterson. See also: October | November | December.
