S
M
T
W
T
F
S
30
83°
62°
31
84°
62°
1
82°
61°
2
79°
61°
3
80°
60°
4
79°
61°
5
79°
56°
6
80°
56°
7
83°
59°
8
81°
57°
9
78°
54°
10
78°
59°
11
77°
52°
12
81°
53°
13
82°
58°
14
82°
50°
15
76°
50°
16
74°
49°
17
75°
50°
18
78°
51°
19
81°
50°
20
81°
50°
21
80°
54°
22
80°
56°
23
79°
54°
24
78°
52°
25
79°
51°
26
80°
54°
27
79°
52°
28
79°
53°
29
78°
53°
30
79°
52°
1
79°
52°
2
78°
53°
3
79°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Grassy Creek
Grassy Creek's September 2026 forecast shows daily high temperatures ranging from 74° to 84°, with overnight lows between 47° and 62°. The average high for September is 79° with an average low of 54°. 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 Grassy Creek. See also: October | November | December.
