S
M
T
W
T
F
S
26
68°
50°
27
68°
46°
28
57°
41°
29
54°
41°
30
50°
37°
1
52°
36°
2
63°
34°
3
72°
52°
4
70°
43°
5
53°
33°
6
50°
35°
7
61°
39°
8
67°
45°
9
68°
39°
10
55°
37°
11
61°
42°
12
71°
50°
13
72°
52°
14
65°
45°
15
68°
46°
16
65°
46°
17
63°
44°
18
69°
44°
19
71°
46°
20
68°
46°
21
65°
40°
22
62°
40°
23
63°
41°
24
64°
41°
25
64°
42°
26
65°
42°
27
64°
43°
28
65°
43°
29
67°
51°
30
66°
48°
31
67°
46°
1
71°
50°
2
74°
54°
3
76°
54°
4
77°
55°
5
78°
56°
6
77°
57°
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 50° to 78°, with overnight lows between 33° and 57°. The average high for May is 66° 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 Preston. See also: June | July | August.
