S
M
T
W
T
F
S
26
81°
57°
27
84°
62°
28
77°
67°
29
77°
65°
30
78°
56°
31
85°
55°
1
81°
67°
2
83°
67°
3
74°
56°
4
83°
49°
5
86°
59°
6
84°
69°
7
80°
67°
8
86°
68°
9
82°
61°
10
82°
66°
11
78°
67°
12
78°
66°
13
80°
65°
14
82°
62°
15
83°
58°
16
84°
69°
17
77°
62°
18
79°
65°
19
74°
62°
20
74°
56°
21
76°
58°
22
75°
58°
23
72°
56°
24
71°
57°
25
76°
57°
26
78°
60°
27
77°
60°
28
76°
61°
29
78°
58°
30
75°
62°
31
71°
56°
1
72°
60°
2
73°
61°
3
71°
60°
4
71°
58°
5
72°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Ashtabula
Ashtabula's August 2026 forecast shows daily high temperatures ranging from 71° to 79°, with overnight lows between 56° and 65°. The average high for August is 74° 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 Ashtabula. See also: September | October | November.
