S
M
T
W
T
F
S
26
79°
63°
27
82°
64°
28
80°
67°
29
79°
64°
30
80°
60°
31
85°
59°
1
88°
69°
2
75°
65°
3
78°
61°
4
83°
65°
5
79°
67°
6
81°
67°
7
80°
68°
8
80°
66°
9
78°
65°
10
77°
63°
11
77°
64°
12
75°
63°
13
76°
61°
14
75°
63°
15
74°
60°
16
73°
62°
17
81°
65°
18
77°
64°
19
81°
65°
20
76°
63°
21
74°
62°
22
77°
65°
23
81°
66°
24
79°
65°
25
77°
65°
26
78°
64°
27
81°
65°
28
80°
64°
29
77°
63°
30
78°
64°
31
79°
63°
1
77°
62°
2
72°
60°
3
71°
59°
4
71°
61°
5
74°
62°
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 71° to 88°, with overnight lows between 59° and 69°. The average high for August is 78° with an average low of 64°. 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.
