S
M
T
W
T
F
S
30
73°
53°
31
74°
53°
1
72°
54°
2
72°
54°
3
73°
55°
4
70°
54°
5
73°
54°
6
72°
53°
7
70°
52°
8
71°
51°
9
69°
52°
10
70°
57°
11
69°
50°
12
69°
50°
13
72°
49°
14
72°
56°
15
71°
56°
16
70°
53°
17
68°
48°
18
68°
48°
19
69°
49°
20
73°
54°
21
69°
49°
22
66°
51°
23
71°
53°
24
70°
52°
25
71°
51°
26
65°
44°
27
68°
45°
28
63°
44°
29
62°
43°
30
62°
44°
1
Hist. Avg.
69°
49°
2
Hist. Avg.
68°
48°
3
Hist. Avg.
68°
48°
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 62° to 74°, with overnight lows between 43° and 57°. The average high for September is 70° with an average low of 51°. 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.
