S
M
T
W
T
F
S
26
99°
78°
27
99°
77°
28
101°
80°
29
92°
73°
30
90°
71°
31
87°
72°
1
81°
72°
2
84°
69°
3
88°
68°
4
91°
66°
5
92°
65°
6
93°
71°
7
92°
71°
8
92°
74°
9
96°
70°
10
98°
74°
11
98°
75°
12
99°
77°
13
101°
77°
14
101°
78°
15
101°
73°
16
104°
79°
17
97°
77°
18
94°
73°
19
102°
75°
20
94°
73°
21
94°
71°
22
94°
71°
23
92°
70°
24
90°
72°
25
92°
71°
26
93°
69°
27
90°
71°
28
92°
71°
29
92°
70°
30
91°
71°
31
92°
69°
1
94°
72°
2
83°
70°
3
83°
65°
4
91°
71°
5
90°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Jonesboro
Jonesboro's August 2026 forecast shows daily high temperatures ranging from 83° to 102°, with overnight lows between 65° and 75°. 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 Jonesboro. See also: September | October | November.