S
M
T
W
T
F
S
30
89°
70°
31
90°
69°
1
89°
70°
2
92°
67°
3
88°
66°
4
88°
67°
5
89°
68°
6
92°
70°
7
92°
69°
8
91°
70°
9
87°
71°
10
91°
72°
11
93°
72°
12
93°
71°
13
94°
72°
14
93°
71°
15
93°
71°
16
92°
70°
17
91°
68°
18
92°
69°
19
88°
68°
20
90°
68°
21
91°
60°
22
85°
60°
23
88°
67°
24
86°
60°
25
86°
59°
26
Hist. Avg.
84°
61°
27
Hist. Avg.
84°
60°
28
Hist. Avg.
83°
60°
29
Hist. Avg.
83°
60°
30
Hist. Avg.
83°
59°
1
Hist. Avg.
82°
59°
2
Hist. Avg.
82°
59°
3
Hist. Avg.
82°
58°
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 85° to 94°, with overnight lows between 59° and 72°. The average high for September is 90° with an average low of 68°. 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.
