S
M
T
W
T
F
S
31
71°
45°
1
58°
36°
2
62°
42°
3
55°
36°
4
50°
36°
5
42°
34°
6
45°
32°
7
49°
30°
8
59°
35°
9
58°
34°
10
59°
35°
11
57°
34°
12
61°
36°
13
64°
35°
14
57°
34°
15
50°
35°
16
54°
33°
17
62°
39°
18
61°
38°
19
55°
31°
20
60°
34°
21
62°
38°
22
64°
40°
23
63°
36°
24
56°
33°
25
60°
33°
26
63°
34°
27
54°
32°
28
53°
33°
29
55°
32°
30
60°
36°
1
58°
33°
2
62°
38°
3
66°
41°
4
67°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in East Whatcom
East Whatcom's June 2026 forecast shows daily high temperatures ranging from 42° to 67°, with overnight lows between 30° and 42°. The average high for June is 58° with an average low of 35°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in East Whatcom. See also: July | August | September.