S
M
T
W
T
F
S
30
86°
72°
31
93°
70°
1
94°
70°
2
93°
68°
3
85°
70°
4
94°
71°
5
93°
60°
6
95°
66°
7
95°
67°
8
92°
65°
9
87°
64°
10
80°
61°
11
77°
60°
12
78°
58°
13
76°
56°
14
74°
56°
15
75°
56°
16
77°
58°
17
76°
57°
18
79°
59°
19
74°
53°
20
75°
56°
21
74°
54°
22
75°
53°
23
75°
52°
24
74°
51°
25
75°
51°
26
75°
53°
27
74°
54°
28
75°
51°
29
74°
50°
30
72°
54°
1
72°
55°
2
73°
53°
3
73°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Posta
Posta's September 2026 forecast shows daily high temperatures ranging from 72° to 95°, with overnight lows between 50° and 67°. The average high for September is 78° with an average low of 56°. 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 Posta. See also: October | November | December.
