S
M
T
W
T
F
S
26
93°
67°
27
89°
71°
28
91°
75°
29
91°
71°
30
85°
71°
31
72°
65°
1
82°
61°
2
84°
64°
3
85°
63°
4
71°
54°
5
79°
51°
6
82°
53°
7
77°
56°
8
81°
55°
9
82°
64°
10
82°
64°
11
84°
66°
12
86°
68°
13
79°
66°
14
80°
66°
15
82°
65°
16
79°
56°
17
85°
52°
18
81°
56°
19
79°
53°
20
85°
57°
21
80°
61°
22
79°
53°
23
80°
50°
24
82°
60°
25
89°
59°
26
79°
51°
27
82°
52°
28
86°
68°
29
87°
65°
30
85°
60°
31
84°
58°
1
78°
58°
2
81°
57°
3
82°
58°
4
81°
59°
5
79°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Granite Falls
Granite Falls's August 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 51° and 68°. The average high for August is 83° with an average low of 59°. 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 Granite Falls. See also: September | October | November.
