S
M
T
W
T
F
S
26
55°
35°
27
60°
32°
28
68°
34°
29
53°
38°
30
60°
33°
1
65°
42°
2
71°
41°
3
82°
40°
4
60°
38°
5
49°
37°
6
62°
30°
7
67°
38°
8
61°
39°
9
75°
40°
10
84°
45°
11
76°
46°
12
59°
40°
13
57°
39°
14
59°
38°
15
46°
39°
16
55°
38°
17
63°
37°
18
52°
40°
19
54°
40°
20
68°
42°
21
58°
45°
22
72°
42°
23
47°
34°
24
65°
32°
25
63°
38°
26
61°
43°
27
74°
38°
28
N/A
29
84°
55°
30
63°
45°
31
61°
44°
1
60°
42°
2
60°
42°
3
64°
45°
4
66°
43°
5
71°
48°
6
81°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Irkutsk
Irkutsk's May 2026 forecast shows daily high temperatures ranging from 60° to 84°, with overnight lows between 42° and 55°. The average high for May is 68° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Irkutsk. See also: June | July | August.
