S
M
T
W
T
F
S
26
65°
31°
27
72°
33°
28
73°
38°
29
69°
39°
30
51°
40°
1
51°
30°
2
49°
30°
3
49°
30°
4
59°
29°
5
78°
40°
6
48°
41°
7
51°
34°
8
49°
34°
9
62°
30°
10
62°
43°
11
51°
33°
12
53°
32°
13
52°
31°
14
56°
44°
15
66°
51°
16
73°
53°
17
72°
46°
18
74°
43°
19
80°
67°
20
73°
34°
21
57°
34°
22
62°
40°
23
65°
49°
24
66°
46°
25
63°
49°
26
69°
47°
27
71°
49°
28
73°
49°
29
72°
49°
30
75°
51°
31
74°
53°
1
73°
48°
2
67°
50°
3
65°
50°
4
65°
51°
5
67°
52°
6
74°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Melbourne
Melbourne's May 2026 forecast shows daily high temperatures ranging from 57° to 80°, with overnight lows between 34° and 67°. The average high for May is 69° with an average low of 48°. 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 Melbourne. See also: June | July | August.