S
M
T
W
T
F
S
30
96°
77°
31
95°
76°
1
94°
75°
2
93°
75°
3
93°
76°
4
92°
75°
5
93°
75°
6
92°
74°
7
92°
74°
8
91°
73°
9
92°
74°
10
92°
74°
11
91°
73°
12
92°
74°
13
91°
74°
14
90°
72°
15
91°
71°
16
92°
71°
17
91°
70°
18
80°
68°
19
85°
69°
20
87°
68°
21
88°
65°
22
83°
61°
23
78°
59°
24
79°
64°
25
83°
66°
26
86°
67°
27
88°
67°
28
86°
66°
29
85°
66°
30
84°
62°
1
82°
56°
2
76°
56°
3
74°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sherman
Sherman's September 2026 forecast shows daily high temperatures ranging from 74° to 96°, with overnight lows between 55° and 77°. The average high for September is 88° with an average low of 69°. 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 Sherman. See also: October | November | December.
