S
M
T
W
T
F
S
30
74°
46°
31
75°
49°
1
73°
50°
2
71°
45°
3
72°
46°
4
69°
42°
5
71°
53°
6
75°
52°
7
79°
48°
8
79°
51°
9
Hist. Avg.
74°
47°
10
Hist. Avg.
74°
46°
11
Hist. Avg.
73°
46°
12
Hist. Avg.
73°
46°
13
Hist. Avg.
72°
45°
14
Hist. Avg.
72°
45°
15
Hist. Avg.
72°
45°
16
Hist. Avg.
71°
44°
17
Hist. Avg.
71°
44°
18
Hist. Avg.
70°
44°
19
Hist. Avg.
70°
44°
20
Hist. Avg.
69°
43°
21
Hist. Avg.
69°
43°
22
Hist. Avg.
68°
43°
23
Hist. Avg.
68°
43°
24
Hist. Avg.
68°
42°
25
Hist. Avg.
67°
42°
26
Hist. Avg.
67°
42°
27
Hist. Avg.
66°
42°
28
Hist. Avg.
66°
41°
29
Hist. Avg.
65°
41°
30
Hist. Avg.
65°
41°
1
Hist. Avg.
64°
41°
2
Hist. Avg.
64°
41°
3
Hist. Avg.
64°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Olalla
Olalla's September 2026 forecast shows daily high temperatures ranging from 69° to 79°, with overnight lows between 42° and 53°. The average high for September is 74° with an average low of 48°. 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 Olalla. See also: October | November | December.
