S
M
T
W
T
F
S
26
76°
53°
27
71°
51°
28
60°
47°
29
57°
45°
30
55°
42°
1
57°
39°
2
60°
38°
3
73°
48°
4
80°
47°
5
57°
44°
6
54°
38°
7
66°
38°
8
71°
46°
9
75°
50°
10
69°
42°
11
72°
43°
12
76°
55°
13
73°
53°
14
78°
49°
15
85°
58°
16
88°
66°
17
90°
71°
18
85°
60°
19
67°
46°
20
69°
47°
21
69°
51°
22
75°
58°
23
77°
59°
24
79°
60°
25
79°
61°
26
82°
60°
27
82°
60°
28
81°
61°
29
76°
55°
30
79°
61°
31
81°
63°
1
82°
61°
2
80°
61°
3
73°
56°
4
73°
57°
5
80°
62°
6
80°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Oskaloosa
Oskaloosa's May 2026 forecast shows daily high temperatures ranging from 67° to 90°, with overnight lows between 46° and 71°. The average high for May is 79° with an average low of 59°. 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 Oskaloosa. See also: June | July | August.
