S
M
T
W
T
F
S
26
79°
63°
27
82°
64°
28
80°
67°
29
79°
64°
30
77°
60°
31
85°
65°
1
85°
68°
2
77°
66°
3
78°
62°
4
83°
64°
5
81°
66°
6
83°
64°
7
80°
63°
8
81°
64°
9
82°
62°
10
79°
61°
11
80°
62°
12
76°
60°
13
79°
58°
14
84°
60°
15
76°
56°
16
75°
58°
17
76°
62°
18
77°
61°
19
77°
60°
20
78°
59°
21
76°
56°
22
75°
54°
23
75°
53°
24
74°
55°
25
72°
55°
26
74°
56°
27
75°
57°
28
75°
54°
29
74°
53°
30
74°
56°
31
79°
60°
1
77°
60°
2
77°
58°
3
74°
56°
4
73°
55°
5
73°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Tonawanda
Tonawanda's August 2026 forecast shows daily high temperatures ranging from 72° to 85°, with overnight lows between 53° and 68°. The average high for August is 78° 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 Tonawanda. See also: September | October | November.
