S
M
T
W
T
F
S
26
63°
44°
27
59°
47°
28
59°
44°
29
66°
42°
30
73°
43°
1
64°
45°
2
61°
48°
3
58°
49°
4
58°
46°
5
56°
44°
6
57°
42°
7
58°
41°
8
59°
46°
9
60°
46°
10
55°
42°
11
54°
41°
12
55°
41°
13
55°
45°
14
52°
41°
15
54°
41°
16
52°
45°
17
55°
46°
18
54°
50°
19
57°
51°
20
60°
52°
21
63°
55°
22
66°
54°
23
66°
52°
24
66°
52°
25
63°
49°
26
64°
50°
27
58°
42°
28
57°
41°
29
57°
43°
30
58°
42°
31
58°
43°
1
59°
47°
2
61°
48°
3
63°
48°
4
62°
47°
5
60°
48°
6
60°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Whitehaven
Whitehaven's May 2026 forecast shows daily high temperatures ranging from 52° to 66°, with overnight lows between 41° and 55°. The average high for May is 59° with an average low of 47°. 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 Whitehaven. See also: June | July | August.