S
M
T
W
T
F
S
30
89°
79°
31
89°
79°
1
88°
78°
2
88°
79°
3
89°
78°
4
88°
77°
5
87°
77°
6
87°
76°
7
89°
77°
8
87°
77°
9
87°
76°
10
88°
78°
11
88°
78°
12
89°
77°
13
88°
78°
14
92°
77°
15
91°
77°
16
90°
76°
17
91°
75°
18
90°
76°
19
91°
75°
20
90°
76°
21
89°
76°
22
89°
75°
23
90°
75°
24
90°
76°
25
89°
76°
26
89°
75°
27
88°
75°
28
88°
76°
29
87°
76°
30
87°
75°
1
88°
75°
2
89°
74°
3
89°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Olympia Heights
Olympia Heights's September 2026 forecast shows daily high temperatures ranging from 87° to 92°, with overnight lows between 74° and 79°. The average high for September is 89° with an average low of 76°. 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 Olympia Heights. See also: October | November | December.
