S
M
T
W
T
F
S
30
58°
43°
31
65°
52°
1
74°
50°
2
62°
55°
3
61°
51°
4
61°
47°
5
68°
48°
6
73°
43°
7
73°
37°
8
74°
39°
9
72°
46°
10
65°
42°
11
69°
35°
12
72°
33°
13
74°
30°
14
66°
35°
15
68°
39°
16
72°
33°
17
76°
32°
18
76°
33°
19
73°
34°
20
75°
36°
21
78°
34°
22
72°
36°
23
59°
42°
24
53°
34°
25
N/A
26
55°
33°
27
N/A
28
48°
32°
29
58°
33°
30
56°
31°
1
53°
30°
2
47°
37°
3
64°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Clearwater
Clearwater's September 2026 forecast shows daily high temperatures ranging from 64° to 64°, with overnight lows between 39° and 39°. The average high for September is 64° with an average low of 39°. 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 Clearwater. See also: October | November | December.
