S
M
T
W
T
F
S
26
77°
57°
27
76°
58°
28
72°
58°
29
73°
54°
30
74°
58°
31
76°
53°
1
78°
57°
2
79°
58°
3
77°
52°
4
78°
51°
5
72°
52°
6
72°
57°
7
76°
56°
8
79°
51°
9
73°
50°
10
76°
56°
11
78°
49°
12
73°
49°
13
71°
57°
14
78°
58°
15
77°
50°
16
78°
49°
17
70°
49°
18
70°
47°
19
71°
49°
20
75°
50°
21
69°
48°
22
69°
53°
23
76°
54°
24
75°
49°
25
74°
46°
26
68°
45°
27
67°
46°
28
68°
46°
29
67°
47°
30
68°
53°
31
70°
55°
1
76°
54°
2
75°
51°
3
74°
45°
4
72°
51°
5
73°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Grand Falls
Grand Falls's August 2026 forecast shows daily high temperatures ranging from 67° to 79°, with overnight lows between 43° and 58°. The average high for August is 74° with an average low of 52°. 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 Grand Falls. See also: September | October | November.
