S
M
T
W
T
F
S
30
86°
68°
31
85°
66°
1
84°
65°
2
85°
63°
3
83°
62°
4
83°
63°
5
84°
65°
6
84°
66°
7
86°
69°
8
86°
66°
9
83°
68°
10
83°
69°
11
89°
69°
12
89°
68°
13
88°
69°
14
87°
68°
15
89°
68°
16
88°
67°
17
87°
64°
18
88°
62°
19
80°
66°
20
86°
64°
21
87°
57°
22
79°
56°
23
78°
63°
24
84°
64°
25
Hist. Avg.
80°
59°
26
Hist. Avg.
80°
58°
27
Hist. Avg.
80°
58°
28
Hist. Avg.
79°
58°
29
Hist. Avg.
79°
57°
30
Hist. Avg.
79°
57°
1
Hist. Avg.
78°
56°
2
Hist. Avg.
78°
56°
3
Hist. Avg.
78°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Sallisaw
Sallisaw's September 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 56° and 69°. The average high for September is 85° with an average low of 65°. 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 Sallisaw. See also: October | November | December.