S
M
T
W
T
F
S
26
97°
77°
27
97°
75°
28
98°
76°
29
98°
76°
30
98°
77°
31
103°
80°
1
96°
74°
2
94°
67°
3
97°
67°
4
99°
73°
5
99°
74°
6
98°
76°
7
99°
78°
8
99°
79°
9
99°
79°
10
100°
77°
11
100°
80°
12
101°
79°
13
100°
78°
14
99°
79°
15
98°
78°
16
100°
78°
17
101°
79°
18
100°
78°
19
101°
79°
20
95°
72°
21
98°
76°
22
97°
76°
23
97°
76°
24
96°
77°
25
97°
77°
26
97°
76°
27
96°
76°
28
97°
75°
29
96°
75°
30
97°
76°
31
97°
75°
1
95°
74°
2
94°
75°
3
95°
75°
4
95°
74°
5
94°
74°
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 94° to 101°, with overnight lows between 72° and 80°. The average high for August is 98° with an average low of 77°. 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.
