S
M
T
W
T
F
S
26
66°
47°
27
69°
46°
28
64°
46°
29
67°
48°
30
63°
46°
1
67°
53°
2
69°
54°
3
76°
49°
4
65°
44°
5
64°
43°
6
65°
46°
7
73°
53°
8
69°
48°
9
67°
46°
10
66°
45°
11
67°
53°
12
77°
58°
13
78°
58°
14
76°
54°
15
73°
48°
16
68°
49°
17
70°
57°
18
76°
60°
19
78°
59°
20
76°
57°
21
71°
52°
22
74°
56°
23
76°
59°
24
78°
58°
25
79°
57°
26
78°
59°
27
80°
59°
28
81°
60°
29
84°
57°
30
79°
58°
31
83°
54°
1
79°
53°
2
75°
53°
3
75°
54°
4
76°
56°
5
77°
56°
6
76°
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 63° to 84°, with overnight lows between 43° and 64°. The average high for May is 73° with an average low of 53°. 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.