S
M
T
W
T
F
S
26
70°
42°
27
58°
42°
28
61°
49°
29
72°
46°
30
77°
48°
1
79°
47°
2
83°
53°
3
85°
55°
4
84°
57°
5
72°
48°
6
59°
50°
7
68°
53°
8
61°
53°
9
72°
45°
10
69°
45°
11
75°
46°
12
82°
53°
13
65°
53°
14
62°
50°
15
52°
43°
16
54°
43°
17
67°
46°
18
67°
44°
19
63°
52°
20
71°
49°
21
76°
47°
22
79°
48°
23
70°
53°
24
72°
51°
25
60°
52°
26
63°
51°
27
77°
52°
28
81°
53°
29
66°
54°
30
66°
45°
31
55°
31°
1
59°
37°
2
62°
38°
3
60°
36°
4
50°
36°
5
48°
31°
6
45°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in East Whatcom
East Whatcom's May 2026 forecast shows daily high temperatures ranging from 45° to 62°, with overnight lows between 31° and 38°. The average high for May is 54° with an average low of 34°. 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 East Whatcom. See also: June | July | August.
