S
M
T
W
T
F
S
26
82°
58°
27
83°
72°
28
79°
67°
29
69°
60°
30
66°
52°
1
69°
49°
2
73°
42°
3
79°
58°
4
81°
62°
5
82°
66°
6
71°
47°
7
70°
47°
8
76°
54°
9
81°
63°
10
76°
58°
11
81°
59°
12
81°
60°
13
83°
62°
14
83°
62°
15
90°
69°
16
82°
64°
17
77°
63°
18
76°
64°
19
81°
65°
20
81°
64°
21
83°
59°
22
76°
57°
23
76°
58°
24
77°
59°
25
75°
58°
26
76°
58°
27
77°
59°
28
78°
59°
29
79°
63°
30
82°
66°
31
80°
67°
1
80°
67°
2
81°
63°
3
81°
68°
4
82°
68°
5
81°
69°
6
80°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Olmstead
Olmstead's May 2026 forecast shows daily high temperatures ranging from 70° to 90°, with overnight lows between 42° and 69°. The average high for May is 79° 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 May weather will actually feel in Olmstead. See also: June | July | August.
