S
M
T
W
T
F
S
26
83°
66°
27
86°
67°
28
87°
67°
29
86°
66°
30
85°
65°
31
81°
63°
1
80°
65°
2
85°
67°
3
87°
67°
4
87°
66°
5
88°
67°
6
87°
67°
7
83°
62°
8
84°
62°
9
84°
57°
10
80°
56°
11
78°
58°
12
79°
59°
13
79°
57°
14
80°
57°
15
77°
58°
16
79°
62°
17
81°
61°
18
80°
60°
19
79°
59°
20
79°
63°
21
78°
62°
22
81°
61°
23
81°
62°
24
82°
62°
25
84°
61°
26
85°
62°
27
85°
57°
28
83°
55°
29
78°
61°
30
77°
58°
31
78°
54°
1
77°
53°
2
76°
53°
3
75°
51°
4
75°
51°
5
76°
55°
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 75° to 88°, with overnight lows between 51° and 67°. The average high for August is 81° with an average low of 61°. 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.
