S
M
T
W
T
F
S
30
86°
66°
31
87°
66°
1
86°
65°
2
87°
61°
3
87°
60°
4
83°
61°
5
85°
62°
6
86°
69°
7
90°
70°
8
93°
70°
9
92°
69°
10
93°
66°
11
91°
67°
12
87°
67°
13
85°
66°
14
92°
60°
15
83°
61°
16
86°
60°
17
87°
59°
18
85°
60°
19
85°
63°
20
87°
61°
21
89°
61°
22
86°
64°
23
87°
64°
24
87°
63°
25
85°
63°
26
82°
62°
27
82°
63°
28
85°
62°
29
86°
62°
30
85°
61°
1
82°
61°
2
85°
54°
3
86°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sweetwater
Sweetwater's September 2026 forecast shows daily high temperatures ranging from 82° to 93°, with overnight lows between 53° and 70°. The average high for September is 87° with an average low of 63°. 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 Sweetwater. See also: October | November | December.
