S
M
T
W
T
F
S
26
80°
54°
27
78°
60°
28
66°
56°
29
65°
49°
30
65°
38°
1
62°
46°
2
60°
40°
3
70°
42°
4
77°
56°
5
56°
47°
6
63°
45°
7
63°
46°
8
70°
49°
9
80°
56°
10
69°
46°
11
65°
44°
12
65°
51°
13
69°
56°
14
75°
58°
15
76°
59°
16
78°
58°
17
74°
57°
18
73°
54°
19
78°
57°
20
74°
53°
21
76°
52°
22
70°
50°
23
70°
50°
24
71°
52°
25
69°
51°
26
70°
51°
27
72°
52°
28
73°
56°
29
74°
56°
30
77°
61°
31
75°
60°
1
75°
55°
2
76°
57°
3
77°
60°
4
78°
63°
5
80°
64°
6
80°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Centralia
Centralia's May 2026 forecast shows daily high temperatures ranging from 56° to 80°, with overnight lows between 44° and 64°. The average high for May is 72° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Centralia. See also: June | July | August.