S
M
T
W
T
F
S
26
96°
75°
27
97°
75°
28
99°
74°
29
99°
75°
30
100°
76°
31
100°
76°
1
99°
75°
2
100°
76°
3
100°
76°
4
100°
75°
5
101°
76°
6
100°
76°
7
100°
75°
8
99°
76°
9
100°
76°
10
98°
73°
11
99°
73°
12
97°
72°
13
96°
71°
14
98°
73°
15
99°
72°
16
99°
73°
17
98°
73°
18
99°
66°
19
98°
66°
20
90°
65°
21
91°
64°
22
91°
64°
23
92°
65°
24
92°
66°
25
93°
66°
26
93°
67°
27
94°
69°
28
96°
69°
29
93°
70°
30
96°
70°
31
96°
67°
1
95°
70°
2
94°
69°
3
94°
67°
4
89°
68°
5
93°
68°
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 89° to 101°, with overnight lows between 64° and 76°. The average high for August is 97° with an average low of 71°. 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.
