S
M
T
W
T
F
S
26
54°
45°
27
55°
46°
28
52°
37°
29
59°
36°
30
57°
39°
1
70°
37°
2
59°
46°
3
48°
42°
4
54°
42°
5
48°
38°
6
50°
43°
7
52°
44°
8
52°
45°
9
49°
43°
10
52°
40°
11
52°
41°
12
54°
42°
13
54°
42°
14
55°
43°
15
54°
42°
16
53°
40°
17
54°
41°
18
54°
44°
19
55°
42°
20
53°
41°
21
53°
42°
22
54°
41°
23
54°
46°
24
56°
46°
25
55°
45°
26
56°
46°
27
55°
44°
28
55°
42°
29
54°
41°
30
55°
45°
31
56°
46°
1
56°
46°
2
57°
44°
3
56°
45°
4
56°
47°
5
57°
46°
6
57°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Portlethen
Portlethen's May 2026 forecast shows daily high temperatures ranging from 48° to 57°, with overnight lows between 38° and 47°. The average high for May is 54° with an average low of 43°. 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 Portlethen. See also: June | July | August.
