S
M
T
W
T
F
S
30
65°
48°
31
69°
51°
1
72°
52°
2
74°
52°
3
73°
51°
4
66°
43°
5
67°
44°
6
66°
45°
7
70°
47°
8
68°
48°
9
67°
43°
10
67°
43°
11
68°
48°
12
66°
51°
13
66°
44°
14
65°
43°
15
65°
43°
16
66°
44°
17
66°
44°
18
70°
45°
19
72°
48°
20
72°
44°
21
67°
44°
22
67°
45°
23
64°
43°
24
65°
42°
25
63°
40°
26
64°
41°
27
63°
43°
28
64°
48°
29
69°
47°
30
61°
42°
1
61°
44°
2
Hist. Avg.
65°
45°
3
Hist. Avg.
65°
45°
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 61° to 74°, with overnight lows between 40° and 52°. The average high for September is 67° with an average low of 45°. 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.
