S
M
T
W
T
F
S
26
98°
77°
27
98°
76°
28
97°
77°
29
98°
77°
30
98°
76°
31
99°
77°
1
99°
78°
2
97°
76°
3
97°
70°
4
93°
71°
5
96°
74°
6
97°
72°
7
100°
78°
8
99°
74°
9
99°
73°
10
93°
77°
11
99°
77°
12
99°
74°
13
98°
72°
14
92°
73°
15
94°
77°
16
96°
76°
17
97°
72°
18
95°
71°
19
92°
76°
20
94°
75°
21
92°
75°
22
97°
74°
23
97°
74°
24
95°
71°
25
94°
72°
26
92°
71°
27
93°
69°
28
89°
70°
29
89°
73°
30
92°
73°
31
89°
69°
1
90°
67°
2
89°
67°
3
89°
70°
4
92°
69°
5
92°
68°
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 89° to 100°, with overnight lows between 67° and 78°. The average high for August is 95° with an average low of 73°. 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.
