S
M
T
W
T
F
S
26
97°
66°
27
91°
68°
28
97°
63°
29
99°
70°
30
91°
70°
31
97°
64°
1
104°
63°
2
100°
68°
3
72°
59°
4
79°
46°
5
88°
46°
6
95°
50°
7
93°
54°
8
97°
55°
9
95°
61°
10
93°
54°
11
95°
63°
12
82°
66°
13
73°
59°
14
73°
55°
15
79°
52°
16
88°
54°
17
88°
57°
18
82°
55°
19
88°
52°
20
95°
52°
21
97°
59°
22
88°
63°
23
97°
63°
24
88°
61°
25
82°
55°
26
90°
52°
27
93°
54°
28
77°
63°
29
81°
61°
30
77°
52°
31
82°
45°
1
86°
52°
2
90°
57°
3
86°
61°
4
93°
52°
5
86°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fort Smith
Fort Smith's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. 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 Fort Smith. See also: September | October | November.
