S
M
T
W
T
F
S
26
80°
60°
27
82°
59°
28
83°
67°
29
89°
61°
30
91°
58°
31
90°
61°
1
88°
59°
2
81°
59°
3
80°
58°
4
80°
58°
5
81°
59°
6
79°
58°
7
79°
60°
8
80°
61°
9
78°
58°
10
86°
62°
11
87°
65°
12
81°
66°
13
88°
57°
14
84°
56°
15
77°
57°
16
78°
62°
17
77°
60°
18
84°
60°
19
83°
64°
20
84°
64°
21
87°
63°
22
86°
62°
23
87°
63°
24
86°
62°
25
85°
54°
26
80°
60°
27
77°
62°
28
85°
62°
29
85°
61°
30
84°
61°
31
85°
56°
1
85°
53°
2
81°
59°
3
79°
51°
4
74°
50°
5
78°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Allen
Allen's August 2026 forecast shows daily high temperatures ranging from 74° to 91°, with overnight lows between 50° and 67°. The average high for August is 83° with an average low of 60°. 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 Allen. See also: September | October | November.
