S
M
T
W
T
F
S
30
90°
66°
31
89°
61°
1
85°
61°
2
85°
62°
3
86°
61°
4
89°
64°
5
89°
65°
6
88°
64°
7
85°
61°
8
85°
59°
9
83°
58°
10
82°
57°
11
82°
56°
12
82°
56°
13
81°
57°
14
81°
56°
15
82°
57°
16
81°
57°
17
82°
60°
18
85°
61°
19
85°
61°
20
82°
55°
21
85°
56°
22
Hist. Avg.
83°
58°
23
Hist. Avg.
82°
58°
24
Hist. Avg.
82°
57°
25
Hist. Avg.
82°
57°
26
Hist. Avg.
82°
56°
27
Hist. Avg.
81°
56°
28
Hist. Avg.
81°
56°
29
Hist. Avg.
81°
55°
30
Hist. Avg.
80°
55°
1
Hist. Avg.
80°
54°
2
Hist. Avg.
80°
54°
3
Hist. Avg.
79°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Garth
Garth's September 2026 forecast shows daily high temperatures ranging from 81° to 90°, with overnight lows between 55° and 66°. The average high for September is 85° with an average low of 60°. 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 Garth. See also: October | November | December.
