S
M
T
W
T
F
S
30
81°
59°
31
83°
64°
1
85°
63°
2
86°
58°
3
80°
57°
4
79°
58°
5
80°
61°
6
84°
63°
7
85°
63°
8
84°
62°
9
81°
63°
10
84°
62°
11
83°
62°
12
83°
61°
13
82°
61°
14
82°
60°
15
79°
60°
16
75°
59°
17
79°
54°
18
75°
54°
19
78°
55°
20
79°
59°
21
80°
58°
22
74°
53°
23
79°
54°
24
77°
58°
25
77°
53°
26
78°
55°
27
74°
56°
28
77°
56°
29
Hist. Avg.
74°
52°
30
Hist. Avg.
74°
52°
1
Hist. Avg.
74°
51°
2
Hist. Avg.
74°
51°
3
Hist. Avg.
73°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Forest Hill
Forest Hill's September 2026 forecast shows daily high temperatures ranging from 74° to 86°, with overnight lows between 53° and 64°. The average high for September is 80° with an average low of 59°. 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 Forest Hill. See also: October | November | December.
