S
M
T
W
T
F
S
26
69°
51°
27
67°
43°
28
70°
42°
29
75°
46°
30
80°
59°
1
82°
59°
2
79°
61°
3
62°
53°
4
58°
54°
5
59°
51°
6
62°
48°
7
55°
43°
8
58°
53°
9
61°
53°
10
58°
49°
11
64°
51°
12
72°
46°
13
68°
53°
14
71°
54°
15
67°
56°
16
63°
57°
17
66°
50°
18
65°
50°
19
59°
51°
20
63°
46°
21
64°
46°
22
63°
48°
23
62°
47°
24
58°
46°
25
59°
47°
26
60°
46°
27
61°
48°
28
62°
47°
29
61°
47°
30
60°
46°
31
57°
48°
1
57°
49°
2
58°
48°
3
57°
47°
4
58°
48°
5
56°
48°
6
56°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mount Gambier
Mount Gambier's May 2026 forecast shows daily high temperatures ranging from 56° to 65°, with overnight lows between 46° and 51°. The average high for May is 60° 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 Mount Gambier. See also: June | July | August.
