S
M
T
W
T
F
S
30
94°
73°
31
94°
72°
1
93°
70°
2
92°
68°
3
92°
67°
4
91°
71°
5
93°
68°
6
92°
69°
7
91°
70°
8
89°
69°
9
91°
70°
10
92°
70°
11
91°
69°
12
90°
67°
13
84°
68°
14
84°
67°
15
85°
67°
16
84°
66°
17
84°
67°
18
83°
61°
19
83°
60°
20
81°
60°
21
80°
61°
22
81°
65°
23
84°
66°
24
85°
65°
25
87°
66°
26
86°
65°
27
87°
64°
28
85°
63°
29
85°
61°
30
78°
63°
1
Hist. Avg.
82°
59°
2
Hist. Avg.
81°
59°
3
Hist. Avg.
81°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Texarkana
Texarkana's September 2026 forecast shows daily high temperatures ranging from 78° to 94°, with overnight lows between 60° and 73°. The average high for September is 87° with an average low of 67°. 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 Texarkana. See also: October | November | December.
