S
M
T
W
T
F
S
30
90°
74°
31
91°
73°
1
90°
74°
2
91°
73°
3
90°
73°
4
88°
74°
5
88°
73°
6
89°
74°
7
88°
74°
8
89°
73°
9
88°
73°
10
88°
72°
11
89°
73°
12
89°
73°
13
90°
72°
14
88°
72°
15
89°
73°
16
90°
73°
17
91°
72°
18
90°
73°
19
90°
71°
20
89°
72°
21
90°
73°
22
89°
72°
23
89°
72°
24
88°
71°
25
86°
72°
26
86°
70°
27
87°
71°
28
86°
70°
29
86°
71°
30
85°
72°
1
86°
71°
2
87°
68°
3
85°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Grant-Valkaria
Grant-Valkaria's September 2026 forecast shows daily high temperatures ranging from 85° to 91°, with overnight lows between 68° and 74°. The average high for September is 88° with an average low of 72°. 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 Grant-Valkaria. See also: October | November | December.
