S
M
T
W
T
F
S
29
24°
-9°
30
23°
6°
31
27°
-7°
1
33°
-6°
2
30°
2°
3
31°
21°
4
32°
12°
5
24°
0°
6
36°
-3°
7
40°
16°
8
34°
14°
9
33°
24°
10
32°
7°
11
32°
10°
12
37°
4°
13
33°
13°
14
21°
3°
15
22°
-6°
16
36°
4°
17
28°
12°
18
33°
-1°
19
38°
23°
20
34°
19°
21
35°
22°
22
39°
19°
23
36°
15°
24
38°
18°
25
38°
20°
26
40°
24°
27
41°
26°
28
44°
25°
29
48°
28°
30
45°
28°
1
45°
29°
2
48°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Fort Smith
Fort Smith's April 2026 forecast shows daily high temperatures ranging from 35° to 48°, with overnight lows between 15° and 30°. The average high for April is 41° with an average low of 24°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Fort Smith. See also: May | June | July.
