S
M
T
W
T
F
S
26
65°
25°
27
68°
28°
28
71°
35°
29
74°
37°
30
79°
37°
1
77°
49°
2
79°
46°
3
79°
49°
4
82°
50°
5
84°
51°
6
84°
47°
7
83°
48°
8
83°
49°
9
77°
47°
10
79°
46°
11
75°
49°
12
74°
46°
13
73°
46°
14
78°
53°
15
68°
41°
16
67°
42°
17
67°
42°
18
64°
43°
19
64°
42°
20
65°
42°
21
64°
41°
22
63°
40°
23
65°
40°
24
68°
41°
25
73°
44°
26
74°
46°
27
73°
47°
28
71°
42°
29
66°
41°
30
70°
45°
31
71°
50°
1
66°
47°
2
67°
43°
3
70°
46°
4
67°
45°
5
67°
44°
6
70°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Penticton 1
Penticton 1's May 2026 forecast shows daily high temperatures ranging from 63° to 84°, with overnight lows between 40° and 53°. The average high for May is 72° 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 Penticton 1. See also: June | July | August.
