S
M
T
W
T
F
S
30
80°
61°
31
83°
62°
1
85°
56°
2
80°
56°
3
80°
57°
4
81°
55°
5
80°
54°
6
81°
59°
7
84°
55°
8
80°
59°
9
84°
60°
10
84°
59°
11
81°
59°
12
83°
58°
13
84°
59°
14
84°
59°
15
83°
58°
16
84°
57°
17
81°
58°
18
80°
58°
19
82°
58°
20
82°
57°
21
81°
53°
22
81°
49°
23
77°
55°
24
73°
55°
25
Hist. Avg.
76°
51°
26
Hist. Avg.
76°
51°
27
Hist. Avg.
76°
50°
28
Hist. Avg.
75°
50°
29
Hist. Avg.
75°
50°
30
Hist. Avg.
74°
49°
1
Hist. Avg.
74°
49°
2
Hist. Avg.
74°
48°
3
Hist. Avg.
73°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Grantley
Grantley's September 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 49° and 62°. The average high for September is 81° with an average low of 57°. 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 Grantley. See also: October | November | December.
