S
M
T
W
T
F
S
26
54°
40°
27
59°
35°
28
66°
30°
29
72°
35°
30
77°
39°
1
74°
40°
2
73°
45°
3
77°
46°
4
63°
46°
5
77°
45°
6
80°
49°
7
75°
47°
8
78°
47°
9
84°
43°
10
83°
43°
11
86°
46°
12
83°
49°
13
69°
41°
14
77°
39°
15
71°
42°
16
60°
37°
17
63°
38°
18
71°
44°
19
79°
48°
20
84°
50°
21
86°
48°
22
86°
45°
23
87°
46°
24
86°
48°
25
77°
40°
26
72°
42°
27
73°
43°
28
74°
43°
29
75°
42°
30
68°
38°
31
71°
43°
1
78°
47°
2
79°
48°
3
80°
48°
4
80°
47°
5
79°
48°
6
80°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dunsmuir
Dunsmuir's May 2026 forecast shows daily high temperatures ranging from 60° to 87°, with overnight lows between 37° and 50°. The average high for May is 77° with an average low of 45°. 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 Dunsmuir. See also: June | July | August.