S
M
T
W
T
F
S
26
65°
51°
27
68°
44°
28
74°
49°
29
80°
50°
30
85°
53°
1
83°
56°
2
80°
58°
3
66°
54°
4
61°
54°
5
67°
54°
6
75°
60°
7
83°
57°
8
86°
58°
9
89°
61°
10
89°
61°
11
94°
63°
12
92°
62°
13
82°
57°
14
88°
54°
15
88°
57°
16
81°
62°
17
76°
59°
18
80°
56°
19
85°
56°
20
91°
64°
21
94°
65°
22
94°
63°
23
89°
57°
24
89°
59°
25
85°
56°
26
77°
55°
27
82°
58°
28
87°
61°
29
91°
62°
30
87°
57°
31
90°
60°
1
92°
61°
2
87°
57°
3
88°
58°
4
82°
57°
5
82°
58°
6
83°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in South Oroville
South Oroville's May 2026 forecast shows daily high temperatures ranging from 77° to 94°, with overnight lows between 55° and 65°. The average high for May is 87° 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 South Oroville. See also: June | July | August.
