S
M
T
W
T
F
S
26
57°
21°
27
61°
30°
28
63°
23°
29
66°
25°
30
73°
32°
1
79°
34°
2
77°
43°
3
79°
39°
4
79°
37°
5
79°
39°
6
81°
39°
7
77°
37°
8
72°
34°
9
79°
32°
10
77°
36°
11
79°
32°
12
88°
39°
13
63°
41°
14
68°
27°
15
64°
37°
16
55°
36°
17
59°
34°
18
66°
30°
19
70°
28°
20
72°
34°
21
75°
34°
22
79°
34°
23
79°
41°
24
82°
34°
25
79°
43°
26
55°
34°
27
73°
48°
28
76°
48°
29
60°
39°
30
64°
29°
31
71°
37°
1
80°
42°
2
83°
52°
3
79°
43°
4
81°
48°
5
79°
45°
6
74°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Prineville
Prineville's May 2026 forecast shows daily high temperatures ranging from 60° to 83°, with overnight lows between 29° and 52°. The average high for May is 75° with an average low of 43°. 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 Prineville. See also: June | July | August.
