S
M
T
W
T
F
S
30
89°
59°
31
82°
60°
1
78°
54°
2
83°
56°
3
83°
59°
4
81°
62°
5
84°
60°
6
86°
59°
7
89°
58°
8
97°
63°
9
101°
72°
10
105°
72°
11
96°
62°
12
92°
65°
13
81°
60°
14
87°
56°
15
91°
54°
16
85°
52°
17
81°
55°
18
88°
57°
19
89°
58°
20
86°
59°
21
83°
56°
22
86°
57°
23
90°
59°
24
89°
60°
25
87°
60°
26
89°
61°
27
87°
60°
28
88°
56°
29
84°
57°
30
85°
56°
1
89°
59°
2
85°
58°
3
85°
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 81° to 91°, with overnight lows between 52° and 61°. The average high for September is 87° with an average low of 57°. 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.
