S
M
T
W
T
F
S
26
71°
48°
27
76°
51°
28
79°
53°
29
79°
53°
30
80°
54°
1
81°
55°
2
80°
54°
3
80°
53°
4
79°
55°
5
82°
55°
6
82°
54°
7
80°
52°
8
81°
55°
9
82°
57°
10
84°
58°
11
85°
58°
12
85°
57°
13
84°
58°
14
84°
57°
15
85°
58°
16
84°
60°
17
86°
59°
18
88°
57°
19
87°
53°
20
84°
54°
21
82°
60°
22
88°
60°
23
90°
58°
24
88°
59°
25
88°
57°
26
89°
55°
27
86°
58°
28
84°
61°
29
88°
58°
30
90°
56°
31
90°
56°
1
89°
57°
2
90°
60°
3
90°
54°
4
85°
57°
5
84°
57°
6
90°
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 71° to 90°, with overnight lows between 48° and 63°. The average high for May is 84° with an average low of 56°. 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.
