S
M
T
W
T
F
S
26
55°
43°
27
60°
42°
28
58°
41°
29
59°
45°
30
62°
44°
1
63°
43°
2
62°
45°
3
63°
44°
4
60°
45°
5
64°
45°
6
61°
46°
7
61°
43°
8
64°
41°
9
62°
43°
10
63°
49°
11
63°
43°
12
61°
42°
13
63°
50°
14
70°
51°
15
64°
49°
16
65°
48°
17
67°
51°
18
69°
53°
19
74°
49°
20
73°
45°
21
64°
45°
22
66°
48°
23
68°
49°
24
70°
54°
25
75°
54°
26
75°
52°
27
67°
52°
28
67°
55°
29
68°
53°
30
68°
51°
31
68°
55°
1
75°
54°
2
76°
56°
3
75°
56°
4
76°
57°
5
78°
55°
6
77°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Preston
Preston's May 2026 forecast shows daily high temperatures ranging from 55° to 78°, with overnight lows between 41° and 57°. The average high for May is 67° 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 Preston. See also: June | July | August.
