S
M
T
W
T
F
S
30
92°
71°
31
92°
68°
1
88°
65°
2
87°
65°
3
88°
69°
4
91°
67°
5
92°
68°
6
92°
68°
7
91°
69°
8
91°
69°
9
90°
65°
10
87°
63°
11
87°
67°
12
90°
62°
13
85°
61°
14
83°
60°
15
84°
61°
16
83°
60°
17
87°
61°
18
89°
65°
19
84°
66°
20
88°
65°
21
81°
60°
22
81°
58°
23
Hist. Avg.
85°
59°
24
Hist. Avg.
84°
58°
25
Hist. Avg.
84°
58°
26
Hist. Avg.
84°
58°
27
Hist. Avg.
83°
57°
28
Hist. Avg.
83°
57°
29
Hist. Avg.
83°
56°
30
Hist. Avg.
82°
56°
1
Hist. Avg.
82°
55°
2
Hist. Avg.
82°
55°
3
Hist. Avg.
81°
55°
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 81° to 92°, with overnight lows between 58° and 71°. The average high for September is 88° with an average low of 65°. 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.
