S
M
T
W
T
F
S
26
81°
59°
27
76°
62°
28
83°
62°
29
82°
61°
30
83°
62°
31
83°
63°
1
84°
62°
2
81°
63°
3
83°
62°
4
80°
61°
5
82°
62°
6
83°
61°
7
82°
58°
8
75°
56°
9
75°
59°
10
78°
60°
11
82°
61°
12
79°
61°
13
83°
63°
14
83°
61°
15
81°
60°
16
77°
57°
17
79°
60°
18
75°
60°
19
82°
58°
20
83°
59°
21
82°
56°
22
80°
51°
23
73°
50°
24
75°
50°
25
76°
51°
26
79°
50°
27
79°
51°
28
78°
56°
29
79°
56°
30
73°
56°
31
78°
55°
1
78°
56°
2
79°
48°
3
76°
46°
4
70°
53°
5
70°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Big Falls
Big Falls's August 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 46° and 63°. The average high for August is 79° with an average low of 57°. 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 Big Falls. See also: September | October | November.
