S
M
T
W
T
F
S
26
96°
75°
27
96°
73°
28
91°
75°
29
90°
76°
30
97°
76°
31
97°
75°
1
96°
73°
2
98°
74°
3
94°
70°
4
91°
70°
5
90°
70°
6
91°
71°
7
91°
75°
8
94°
73°
9
93°
72°
10
94°
71°
11
93°
70°
12
89°
72°
13
91°
69°
14
90°
68°
15
89°
68°
16
89°
69°
17
90°
68°
18
90°
69°
19
91°
69°
20
93°
70°
21
94°
72°
22
92°
72°
23
94°
71°
24
95°
72°
25
95°
73°
26
93°
74°
27
94°
71°
28
93°
73°
29
92°
72°
30
92°
73°
31
94°
66°
1
88°
65°
2
87°
70°
3
91°
71°
4
Hist. Avg.
90°
68°
5
Hist. Avg.
89°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Texarkana
Texarkana's August 2026 forecast shows daily high temperatures ranging from 87° to 98°, with overnight lows between 65° and 76°. The average high for August is 92° with an average low of 71°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Texarkana. See also: September | October | November.