S
M
T
W
T
F
S
30
68°
47°
31
69°
53°
1
66°
48°
2
66°
49°
3
67°
43°
4
67°
49°
5
63°
44°
6
63°
42°
7
64°
42°
8
65°
43°
9
67°
50°
10
69°
50°
11
66°
49°
12
65°
43°
13
65°
45°
14
64°
49°
15
68°
40°
16
67°
47°
17
71°
45°
18
59°
38°
19
60°
38°
20
65°
41°
21
68°
50°
22
69°
48°
23
64°
46°
24
58°
43°
25
57°
36°
26
56°
35°
27
54°
34°
28
53°
35°
29
55°
39°
30
55°
43°
1
56°
43°
2
54°
42°
3
54°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Clearwater
Clearwater's September 2026 forecast shows daily high temperatures ranging from 53° to 71°, with overnight lows between 34° and 53°. The average high for September is 63° with an average low of 44°. 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.
