S
M
T
W
T
F
S
26
67°
38°
27
73°
37°
28
69°
48°
29
58°
44°
30
50°
38°
1
53°
30°
2
50°
36°
3
58°
44°
4
65°
53°
5
65°
42°
6
56°
38°
7
52°
40°
8
52°
38°
9
52°
41°
10
55°
39°
11
59°
43°
12
59°
44°
13
60°
45°
14
62°
48°
15
61°
46°
16
62°
56°
17
68°
51°
18
69°
49°
19
65°
45°
20
67°
50°
21
70°
50°
22
68°
49°
23
62°
42°
24
60°
43°
25
61°
43°
26
62°
45°
27
62°
44°
28
63°
43°
29
63°
44°
30
66°
46°
31
65°
51°
1
66°
48°
2
67°
46°
3
70°
52°
4
70°
50°
5
68°
54°
6
76°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Nepean
Nepean's May 2026 forecast shows daily high temperatures ranging from 52° to 76°, with overnight lows between 38° and 56°. The average high for May is 63° 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 Nepean. See also: June | July | August.
