S
M
T
W
T
F
S
26
75°
57°
27
77°
54°
28
76°
54°
29
78°
52°
30
75°
52°
31
76°
53°
1
77°
52°
2
76°
52°
3
77°
55°
4
78°
59°
5
81°
55°
6
78°
59°
7
81°
61°
8
81°
60°
9
80°
55°
10
74°
52°
11
75°
58°
12
78°
60°
13
82°
56°
14
79°
54°
15
77°
52°
16
73°
51°
17
73°
52°
18
74°
56°
19
76°
58°
20
77°
59°
21
79°
56°
22
73°
55°
23
75°
55°
24
74°
58°
25
72°
59°
26
78°
58°
27
80°
58°
28
78°
54°
29
74°
49°
30
70°
55°
31
75°
57°
1
76°
58°
2
78°
54°
3
77°
47°
4
69°
48°
5
69°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Ostrava
Ostrava's August 2026 forecast shows daily high temperatures ranging from 69° to 82°, with overnight lows between 47° and 61°. The average high for August is 76° with an average low of 55°. 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 Ostrava. See also: September | October | November.
