S
M
T
W
T
F
S
30
79°
65°
31
82°
66°
1
84°
61°
2
79°
60°
3
79°
60°
4
80°
59°
5
79°
59°
6
80°
62°
7
82°
59°
8
81°
64°
9
83°
64°
10
82°
63°
11
81°
63°
12
82°
62°
13
83°
63°
14
83°
63°
15
82°
62°
16
82°
60°
17
80°
61°
18
75°
62°
19
80°
61°
20
80°
61°
21
80°
59°
22
79°
53°
23
76°
59°
24
72°
59°
25
Hist. Avg.
75°
56°
26
Hist. Avg.
75°
55°
27
Hist. Avg.
74°
55°
28
Hist. Avg.
74°
55°
29
Hist. Avg.
74°
54°
30
Hist. Avg.
73°
54°
1
Hist. Avg.
73°
53°
2
Hist. Avg.
72°
53°
3
Hist. Avg.
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Heritage
Heritage's September 2026 forecast shows daily high temperatures ranging from 72° to 84°, with overnight lows between 53° and 66°. The average high for September is 80° 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 Heritage. See also: October | November | December.