S
M
T
W
T
F
S
26
90°
67°
27
90°
74°
28
89°
72°
29
74°
62°
30
68°
58°
1
66°
51°
2
76°
52°
3
82°
59°
4
81°
64°
5
82°
66°
6
75°
52°
7
75°
52°
8
77°
56°
9
81°
58°
10
81°
61°
11
83°
64°
12
84°
60°
13
82°
58°
14
83°
59°
15
83°
64°
16
84°
63°
17
84°
64°
18
83°
65°
19
84°
65°
20
83°
64°
21
81°
65°
22
79°
65°
23
79°
63°
24
84°
66°
25
85°
66°
26
80°
62°
27
79°
60°
28
82°
65°
29
85°
67°
30
87°
66°
31
87°
67°
1
88°
68°
2
88°
68°
3
89°
69°
4
89°
68°
5
85°
66°
6
83°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Red Bluff
Red Bluff's May 2026 forecast shows daily high temperatures ranging from 66° to 89°, with overnight lows between 51° and 69°. The average high for May is 82° with an average low of 62°. 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 Red Bluff. See also: June | July | August.
