S
M
T
W
T
F
S
26
71°
53°
27
74°
56°
28
75°
55°
29
73°
58°
30
66°
52°
1
71°
48°
2
74°
56°
3
72°
57°
4
70°
61°
5
66°
59°
6
66°
59°
7
68°
54°
8
75°
56°
9
69°
61°
10
73°
63°
11
73°
60°
12
73°
60°
13
72°
60°
14
73°
59°
15
65°
63°
16
64°
64°
17
67°
63°
18
66°
65°
19
68°
64°
20
64°
62°
21
65°
62°
22
65°
64°
23
66°
63°
24
66°
65°
25
67°
65°
26
68°
66°
27
67°
66°
28
68°
67°
29
71°
68°
30
71°
70°
31
72°
71°
1
72°
70°
2
72°
71°
3
72°
71°
4
72°
70°
5
74°
71°
6
72°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ist
Ist's May 2026 forecast shows daily high temperatures ranging from 64° to 75°, with overnight lows between 54° and 71°. The average high for May is 69° with an average low of 64°. 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 Ist. See also: June | July | August.
