S
M
T
W
T
F
S
26
75°
54°
27
77°
55°
28
78°
56°
29
77°
50°
30
71°
47°
1
73°
49°
2
74°
50°
3
73°
49°
4
73°
48°
5
71°
47°
6
73°
48°
7
77°
50°
8
81°
53°
9
83°
57°
10
84°
57°
11
85°
56°
12
84°
57°
13
84°
57°
14
85°
58°
15
85°
58°
16
83°
55°
17
82°
57°
18
85°
58°
19
86°
57°
20
82°
56°
21
78°
54°
22
81°
59°
23
79°
57°
24
78°
51°
25
78°
51°
26
81°
56°
27
88°
60°
28
89°
59°
29
82°
56°
30
80°
51°
31
82°
58°
1
81°
59°
2
84°
62°
3
91°
61°
4
93°
63°
5
93°
64°
6
95°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Oroville
Oroville's May 2026 forecast shows daily high temperatures ranging from 71° to 95°, with overnight lows between 47° and 64°. The average high for May is 81° with an average low of 55°. 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 Oroville. See also: June | July | August.
