S
M
T
W
T
F
S
26
98°
76°
27
100°
75°
28
100°
77°
29
99°
78°
30
100°
77°
31
104°
78°
1
98°
77°
2
98°
64°
3
102°
67°
4
101°
77°
5
100°
77°
6
100°
78°
7
101°
76°
8
102°
78°
9
101°
75°
10
101°
78°
11
102°
79°
12
104°
81°
13
104°
82°
14
103°
80°
15
101°
78°
16
104°
74°
17
106°
77°
18
106°
78°
19
108°
77°
20
105°
76°
21
106°
74°
22
107°
76°
23
104°
75°
24
102°
74°
25
101°
74°
26
99°
76°
27
100°
75°
28
94°
68°
29
97°
73°
30
96°
72°
31
97°
74°
1
97°
73°
2
96°
71°
3
88°
69°
4
88°
64°
5
88°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fort Griffin
Fort Griffin's August 2026 forecast shows daily high temperatures ranging from 88° to 108°, with overnight lows between 64° and 78°. The average high for August is 100° 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 Fort Griffin. See also: September | October | November.
