S
M
T
W
T
F
S
26
70°
38°
27
61°
44°
28
56°
45°
29
65°
41°
30
72°
42°
1
72°
49°
2
77°
50°
3
83°
51°
4
82°
50°
5
74°
49°
6
69°
50°
7
68°
49°
8
67°
51°
9
66°
49°
10
66°
52°
11
68°
49°
12
68°
50°
13
64°
51°
14
65°
45°
15
66°
48°
16
62°
48°
17
60°
49°
18
61°
50°
19
62°
47°
20
62°
50°
21
61°
49°
22
61°
45°
23
64°
47°
24
69°
49°
25
70°
52°
26
71°
52°
27
67°
50°
28
65°
48°
29
64°
49°
30
70°
53°
31
66°
52°
1
62°
52°
2
63°
49°
3
65°
51°
4
62°
52°
5
63°
50°
6
68°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sedro-Woolley
Sedro-Woolley's May 2026 forecast shows daily high temperatures ranging from 60° to 83°, with overnight lows between 45° and 53°. The average high for May is 67° 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 Sedro-Woolley. See also: June | July | August.
