S
M
T
W
T
F
S
30
93°
71°
31
91°
70°
1
92°
67°
2
90°
68°
3
91°
69°
4
93°
69°
5
94°
68°
6
92°
70°
7
91°
70°
8
94°
69°
9
94°
67°
10
93°
65°
11
91°
69°
12
93°
63°
13
89°
62°
14
86°
61°
15
87°
62°
16
86°
62°
17
91°
61°
18
92°
63°
19
91°
61°
20
92°
66°
21
92°
66°
22
Hist. Avg.
86°
61°
23
Hist. Avg.
85°
61°
24
Hist. Avg.
85°
60°
25
Hist. Avg.
84°
60°
26
Hist. Avg.
84°
59°
27
Hist. Avg.
84°
59°
28
Hist. Avg.
83°
58°
29
Hist. Avg.
83°
58°
30
Hist. Avg.
83°
58°
1
Hist. Avg.
82°
57°
2
Hist. Avg.
82°
57°
3
Hist. Avg.
82°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Granbury
Granbury's September 2026 forecast shows daily high temperatures ranging from 86° to 94°, with overnight lows between 61° and 71°. The average high for September is 91° 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 Granbury. See also: October | November | December.
