S
M
T
W
T
F
S
26
68°
40°
27
59°
42°
28
57°
50°
29
68°
47°
30
76°
44°
1
74°
48°
2
80°
50°
3
85°
51°
4
85°
52°
5
74°
51°
6
70°
51°
7
69°
48°
8
71°
50°
9
70°
49°
10
72°
49°
11
69°
48°
12
70°
48°
13
67°
49°
14
65°
43°
15
66°
45°
16
62°
46°
17
61°
47°
18
61°
48°
19
62°
45°
20
62°
48°
21
61°
47°
22
61°
43°
23
64°
45°
24
70°
47°
25
71°
50°
26
71°
50°
27
67°
48°
28
65°
46°
29
64°
47°
30
70°
51°
31
67°
51°
1
63°
50°
2
63°
48°
3
66°
50°
4
63°
50°
5
63°
48°
6
68°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lynden
Lynden's May 2026 forecast shows daily high temperatures ranging from 61° to 85°, with overnight lows between 43° and 52°. The average high for May is 68° with an average low of 48°. 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 Lynden. See also: June | July | August.
