S
M
T
W
T
F
S
26
100°
80°
27
101°
80°
28
101°
80°
29
100°
81°
30
101°
81°
31
105°
82°
1
100°
77°
2
98°
70°
3
101°
72°
4
101°
77°
5
103°
80°
6
102°
81°
7
102°
82°
8
102°
79°
9
102°
78°
10
101°
80°
11
102°
78°
12
103°
82°
13
103°
82°
14
102°
80°
15
102°
81°
16
104°
82°
17
106°
76°
18
106°
82°
19
106°
83°
20
106°
82°
21
100°
83°
22
105°
82°
23
108°
84°
24
109°
81°
25
105°
81°
26
99°
80°
27
100°
78°
28
97°
76°
29
100°
78°
30
99°
77°
31
98°
76°
1
100°
76°
2
98°
76°
3
97°
74°
4
99°
75°
5
91°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Keller
Keller's August 2026 forecast shows daily high temperatures ranging from 91° to 109°, with overnight lows between 69° and 84°. The average high for August is 100° 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 Keller. See also: September | October | November.
