S
M
T
W
T
F
S
30
92°
68°
31
91°
68°
1
87°
61°
2
85°
61°
3
87°
60°
4
85°
61°
5
86°
62°
6
78°
57°
7
82°
61°
8
84°
63°
9
86°
63°
10
86°
62°
11
84°
61°
12
85°
62°
13
86°
62°
14
86°
63°
15
85°
62°
16
84°
61°
17
85°
62°
18
79°
61°
19
77°
61°
20
83°
60°
21
84°
61°
22
83°
61°
23
84°
60°
24
82°
58°
25
79°
57°
26
78°
56°
27
81°
57°
28
82°
58°
29
82°
58°
30
81°
57°
1
82°
58°
2
81°
58°
3
81°
57°
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 77° to 92°, with overnight lows between 56° and 68°. The average high for September is 84° 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.
