S
M
T
W
T
F
S
30
97°
79°
31
95°
77°
1
97°
77°
2
97°
75°
3
97°
75°
4
96°
75°
5
96°
72°
6
96°
72°
7
98°
75°
8
101°
74°
9
95°
70°
10
91°
69°
11
82°
64°
12
86°
63°
13
84°
62°
14
81°
59°
15
80°
56°
16
86°
63°
17
85°
64°
18
77°
56°
19
81°
60°
20
83°
61°
21
76°
60°
22
82°
60°
23
82°
59°
24
81°
60°
25
81°
57°
26
70°
48°
27
69°
48°
28
68°
46°
29
69°
51°
30
74°
48°
1
73°
54°
2
70°
51°
3
66°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Centralia
Centralia's September 2026 forecast shows daily high temperatures ranging from 66° to 101°, with overnight lows between 46° and 75°. The average high for September is 83° with an average low of 61°. 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 Centralia. See also: October | November | December.
