S
M
T
W
T
F
S
30
90°
75°
31
89°
76°
1
89°
75°
2
88°
74°
3
88°
74°
4
89°
75°
5
88°
74°
6
88°
74°
7
89°
75°
8
88°
73°
9
87°
74°
10
88°
74°
11
88°
73°
12
87°
74°
13
88°
73°
14
87°
73°
15
88°
74°
16
87°
73°
17
88°
74°
18
88°
74°
19
87°
74°
20
89°
75°
21
88°
72°
22
87°
72°
23
Hist. Avg.
88°
74°
24
Hist. Avg.
88°
74°
25
Hist. Avg.
88°
74°
26
Hist. Avg.
88°
74°
27
Hist. Avg.
88°
74°
28
Hist. Avg.
88°
74°
29
Hist. Avg.
88°
73°
30
Hist. Avg.
88°
73°
1
Hist. Avg.
87°
73°
2
Hist. Avg.
87°
73°
3
Hist. Avg.
87°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Oldsmar
Oldsmar's September 2026 forecast shows daily high temperatures ranging from 87° to 90°, with overnight lows between 72° and 76°. The average high for September is 88° with an average low of 74°. 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 Oldsmar. See also: October | November | December.
