S
M
T
W
T
F
S
26
55°
37°
27
61°
34°
28
59°
39°
29
54°
36°
30
61°
30°
1
70°
39°
2
N/A
3
78°
52°
4
72°
53°
5
61°
44°
6
49°
39°
7
49°
39°
8
60°
44°
9
63°
48°
10
64°
49°
11
58°
45°
12
60°
47°
13
60°
46°
14
59°
44°
15
55°
40°
16
63°
47°
17
64°
46°
18
65°
45°
19
62°
41°
20
57°
41°
21
56°
42°
22
56°
41°
23
57°
41°
24
58°
42°
25
65°
45°
26
66°
50°
27
67°
50°
28
67°
49°
29
66°
48°
30
63°
45°
31
66°
46°
1
67°
51°
2
68°
50°
3
67°
48°
4
64°
45°
5
65°
45°
6
64°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Oelsen
Oelsen's May 2026 forecast shows daily high temperatures ranging from 49° to 78°, with overnight lows between 39° and 53°. The average high for May is 62° with an average low of 46°. 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 Oelsen. See also: June | July | August.