S
M
T
W
T
F
S
26
66°
48°
27
68°
46°
28
67°
44°
29
72°
48°
30
70°
50°
1
62°
54°
2
68°
55°
3
66°
51°
4
67°
48°
5
69°
48°
6
70°
56°
7
74°
57°
8
75°
55°
9
74°
56°
10
70°
56°
11
73°
55°
12
74°
57°
13
74°
56°
14
71°
54°
15
66°
52°
16
67°
53°
17
67°
52°
18
68°
53°
19
67°
52°
20
69°
55°
21
73°
57°
22
74°
57°
23
74°
58°
24
73°
58°
25
73°
57°
26
72°
58°
27
71°
57°
28
69°
55°
29
68°
54°
30
67°
52°
31
67°
53°
1
68°
54°
2
70°
56°
3
72°
57°
4
74°
58°
5
73°
58°
6
72°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Summerland
Summerland's May 2026 forecast shows daily high temperatures ranging from 62° to 75°, with overnight lows between 48° and 58°. The average high for May is 70° with an average low of 55°. 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 Summerland. See also: June | July | August.
