S
M
T
W
T
F
S
31
64°
50°
1
79°
37°
2
79°
43°
3
81°
45°
4
79°
52°
5
90°
48°
6
99°
55°
7
86°
48°
8
79°
43°
9
73°
54°
10
70°
41°
11
73°
43°
12
79°
45°
13
61°
46°
14
72°
46°
15
79°
41°
16
91°
55°
17
73°
54°
18
79°
43°
19
77°
46°
20
82°
55°
21
77°
56°
22
70°
51°
23
76°
52°
24
80°
55°
25
82°
58°
26
88°
60°
27
76°
52°
28
72°
50°
29
73°
53°
30
80°
56°
1
84°
58°
2
87°
62°
3
90°
59°
4
87°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Fort Smith
Fort Smith's June 2026 forecast shows daily high temperatures ranging from 70° to 90°, with overnight lows between 50° and 62°. The average high for June is 80° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Fort Smith. See also: July | August | September.
