S
M
T
W
T
F
S
31
72°
54°
1
73°
56°
2
73°
55°
3
66°
50°
4
71°
52°
5
72°
50°
6
64°
51°
7
64°
50°
8
65°
53°
9
63°
55°
10
67°
53°
11
73°
56°
12
74°
58°
13
73°
58°
14
74°
57°
15
73°
58°
16
70°
58°
17
68°
56°
18
67°
55°
19
69°
50°
20
69°
56°
21
70°
49°
22
69°
50°
23
68°
53°
24
69°
50°
25
68°
52°
26
74°
54°
27
76°
51°
28
72°
50°
29
69°
50°
30
68°
49°
1
69°
51°
2
70°
49°
3
73°
50°
4
74°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Seattle
Seattle's June 2026 forecast shows daily high temperatures ranging from 63° to 76°, with overnight lows between 49° and 58°. The average high for June is 70° with an average low of 53°. 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 Seattle. See also: July | August | September.
