S
M
T
W
T
F
S
26
81°
65°
27
83°
66°
28
83°
66°
29
82°
65°
30
83°
66°
31
81°
65°
1
78°
64°
2
76°
63°
3
76°
62°
4
77°
65°
5
77°
64°
6
79°
64°
7
80°
63°
8
82°
65°
9
82°
65°
10
81°
64°
11
82°
65°
12
82°
64°
13
81°
65°
14
85°
64°
15
84°
64°
16
82°
62°
17
80°
63°
18
79°
63°
19
82°
58°
20
80°
55°
21
75°
54°
22
74°
55°
23
75°
56°
24
77°
55°
25
74°
55°
26
74°
60°
27
75°
55°
28
77°
54°
29
73°
54°
30
73°
53°
31
72°
53°
1
72°
55°
2
74°
54°
3
73°
54°
4
75°
53°
5
73°
51°
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 72° to 85°, with overnight lows between 51° and 66°. The average high for August is 78° with an average low of 60°. 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.
