S
M
T
W
T
F
S
30
70°
52°
31
73°
57°
1
70°
56°
2
69°
53°
3
70°
51°
4
72°
56°
5
69°
52°
6
68°
51°
7
69°
51°
8
71°
50°
9
76°
57°
10
77°
59°
11
76°
56°
12
76°
59°
13
77°
59°
14
71°
49°
15
73°
50°
16
71°
55°
17
75°
56°
18
76°
52°
19
75°
56°
20
74°
54°
21
66°
56°
22
74°
57°
23
74°
52°
24
72°
54°
25
72°
58°
26
73°
58°
27
73°
56°
28
64°
53°
29
63°
50°
30
63°
53°
1
62°
49°
2
60°
46°
3
59°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Clyde Hill
Clyde Hill's September 2026 forecast shows daily high temperatures ranging from 59° to 77°, with overnight lows between 46° and 59°. The average high for September is 71° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Clyde Hill. See also: October | November | December.
