S
M
T
W
T
F
S
26
72°
54°
27
80°
60°
28
80°
59°
29
79°
55°
30
72°
59°
31
79°
55°
1
80°
51°
2
71°
52°
3
71°
51°
4
72°
51°
5
72°
52°
6
74°
52°
7
73°
50°
8
70°
50°
9
70°
51°
10
69°
55°
11
74°
53°
12
77°
57°
13
76°
49°
14
77°
48°
15
68°
49°
16
69°
54°
17
75°
56°
18
76°
48°
19
75°
48°
20
67°
46°
21
66°
45°
22
67°
44°
23
65°
45°
24
65°
48°
25
71°
52°
26
72°
52°
27
72°
51°
28
64°
50°
29
64°
45°
30
63°
44°
31
65°
49°
1
69°
50°
2
62°
49°
3
61°
47°
4
62°
44°
5
61°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Irkutsk
Irkutsk's August 2026 forecast shows daily high temperatures ranging from 61° to 80°, with overnight lows between 41° and 60°. The average high for August is 71° with an average low of 51°. 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 Irkutsk. See also: September | October | November.
