S
M
T
W
T
F
S
26
90°
73°
27
91°
74°
28
93°
72°
29
88°
72°
30
88°
68°
31
90°
65°
1
87°
71°
2
90°
73°
3
86°
68°
4
86°
69°
5
88°
70°
6
87°
70°
7
86°
69°
8
91°
70°
9
90°
70°
10
90°
71°
11
90°
70°
12
92°
71°
13
95°
73°
14
97°
74°
15
96°
74°
16
97°
71°
17
97°
73°
18
94°
70°
19
93°
72°
20
94°
71°
21
91°
71°
22
91°
70°
23
88°
70°
24
89°
68°
25
88°
67°
26
88°
70°
27
87°
70°
28
88°
69°
29
89°
70°
30
88°
69°
31
84°
69°
1
82°
68°
2
82°
69°
3
83°
69°
4
85°
68°
5
85°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Roswell
Roswell's August 2026 forecast shows daily high temperatures ranging from 82° to 97°, with overnight lows between 67° and 74°. The average high for August is 90° with an average low of 70°. 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 Roswell. See also: September | October | November.