S
M
T
W
T
F
S
26
90°
74°
27
92°
71°
28
79°
64°
29
81°
61°
30
83°
66°
31
82°
66°
1
81°
66°
2
82°
65°
3
84°
66°
4
85°
66°
5
86°
66°
6
82°
63°
7
85°
65°
8
84°
64°
9
85°
67°
10
85°
68°
11
85°
68°
12
83°
67°
13
83°
67°
14
79°
64°
15
81°
67°
16
84°
67°
17
83°
66°
18
79°
65°
19
79°
66°
20
83°
66°
21
78°
64°
22
83°
67°
23
86°
66°
24
85°
65°
25
81°
66°
26
86°
68°
27
86°
67°
28
85°
66°
29
85°
66°
30
82°
64°
31
76°
61°
1
75°
61°
2
77°
64°
3
80°
65°
4
80°
65°
5
79°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Griffith
Griffith's August 2026 forecast shows daily high temperatures ranging from 75° to 92°, with overnight lows between 61° and 74°. The average high for August is 83° with an average low of 66°. 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 Griffith. See also: September | October | November.
