S
M
T
W
T
F
S
26
64°
39°
27
63°
48°
28
57°
45°
29
63°
43°
30
70°
46°
1
68°
43°
2
63°
45°
3
55°
50°
4
55°
43°
5
54°
37°
6
54°
43°
7
59°
39°
8
63°
43°
9
61°
46°
10
55°
41°
11
54°
37°
12
54°
36°
13
54°
43°
14
54°
39°
15
55°
40°
16
55°
47°
17
59°
45°
18
57°
50°
19
64°
54°
20
68°
54°
21
71°
58°
22
74°
57°
23
72°
56°
24
70°
54°
25
67°
51°
26
68°
52°
27
60°
46°
28
59°
45°
29
59°
46°
30
60°
46°
31
60°
49°
1
62°
52°
2
65°
53°
3
67°
52°
4
66°
52°
5
65°
51°
6
62°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Atherton
Atherton's May 2026 forecast shows daily high temperatures ranging from 54° to 74°, with overnight lows between 39° and 58°. The average high for May is 63° with an average low of 50°. 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 Atherton. See also: June | July | August.
