S
M
T
W
T
F
S
26
71°
29°
27
58°
45°
28
56°
38°
29
70°
35°
30
77°
40°
1
77°
42°
2
75°
44°
3
85°
45°
4
78°
43°
5
64°
47°
6
58°
52°
7
68°
49°
8
62°
44°
9
70°
44°
10
68°
43°
11
74°
43°
12
83°
44°
13
59°
49°
14
58°
45°
15
51°
42°
16
58°
37°
17
64°
39°
18
68°
44°
19
68°
41°
20
75°
44°
21
79°
48°
22
71°
45°
23
69°
43°
24
68°
43°
25
67°
46°
26
66°
45°
27
78°
54°
28
63°
45°
29
63°
42°
30
66°
42°
31
71°
46°
1
71°
49°
2
64°
48°
3
64°
43°
4
63°
43°
5
63°
44°
6
64°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Olympia
Olympia's May 2026 forecast shows daily high temperatures ranging from 51° to 79°, with overnight lows between 37° and 54°. The average high for May is 66° with an average low of 44°. 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 Olympia. See also: June | July | August.
