S
M
T
W
T
F
S
26
59°
39°
27
68°
43°
28
55°
46°
29
59°
48°
30
63°
46°
1
72°
46°
2
70°
52°
3
66°
52°
4
60°
47°
5
54°
47°
6
51°
45°
7
53°
46°
8
58°
50°
9
58°
51°
10
59°
50°
11
55°
47°
12
56°
49°
13
54°
46°
14
55°
45°
15
53°
45°
16
56°
47°
17
59°
48°
18
57°
48°
19
57°
49°
20
58°
46°
21
56°
45°
22
56°
46°
23
57°
48°
24
59°
51°
25
61°
52°
26
62°
52°
27
63°
51°
28
60°
49°
29
59°
47°
30
59°
50°
31
64°
52°
1
65°
52°
2
64°
51°
3
64°
51°
4
60°
53°
5
62°
53°
6
66°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lowestoft
Lowestoft's May 2026 forecast shows daily high temperatures ranging from 51° to 66°, with overnight lows between 45° and 54°. The average high for May is 59° with an average low of 49°. 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 Lowestoft. See also: June | July | August.