S
M
T
W
T
F
S
26
46°
39°
27
46°
39°
28
52°
32°
29
57°
30°
30
54°
30°
1
52°
30°
2
70°
34°
3
70°
45°
4
61°
36°
5
48°
28°
6
48°
32°
7
61°
28°
8
72°
39°
9
57°
37°
10
57°
32°
11
75°
30°
12
72°
46°
13
75°
41°
14
81°
55°
15
84°
48°
16
75°
45°
17
79°
48°
18
52°
45°
19
52°
37°
20
63°
32°
21
70°
41°
22
54°
46°
23
68°
50°
24
88°
48°
25
91°
57°
26
90°
64°
27
91°
64°
28
93°
61°
29
88°
61°
30
81°
66°
31
72°
61°
1
81°
61°
2
88°
61°
3
86°
63°
4
82°
63°
5
79°
61°
6
84°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Bellingham
Bellingham's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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 Bellingham. See also: June | July | August.
