S
M
T
W
T
F
S
30
86°
69°
31
87°
68°
1
82°
69°
2
80°
70°
3
82°
72°
4
85°
71°
5
85°
70°
6
84°
71°
7
85°
68°
8
84°
66°
9
84°
69°
10
80°
70°
11
85°
67°
12
84°
66°
13
79°
68°
14
79°
69°
15
82°
69°
16
83°
67°
17
82°
64°
18
78°
63°
19
77°
63°
20
77°
67°
21
79°
64°
22
80°
67°
23
81°
67°
24
80°
66°
25
81°
67°
26
82°
61°
27
81°
59°
28
76°
60°
29
78°
59°
30
79°
62°
1
78°
63°
2
Hist. Avg.
78°
57°
3
Hist. Avg.
78°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Grandy
Grandy's September 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 59° and 72°. The average high for September is 81° with an average low of 66°. 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 Grandy. See also: October | November | December.
