S
M
T
W
T
F
S
26
45°
32°
27
52°
31°
28
55°
30°
29
58°
28°
30
62°
30°
1
64°
36°
2
68°
40°
3
70°
45°
4
65°
44°
5
68°
45°
6
68°
45°
7
77°
49°
8
76°
49°
9
74°
48°
10
73°
45°
11
70°
46°
12
72°
46°
13
74°
47°
14
68°
40°
15
62°
39°
16
61°
35°
17
63°
38°
18
64°
40°
19
62°
37°
20
62°
36°
21
63°
39°
22
64°
41°
23
63°
37°
24
64°
37°
25
64°
38°
26
65°
37°
27
66°
38°
28
73°
46°
29
77°
49°
30
78°
50°
31
78°
49°
1
77°
49°
2
75°
45°
3
78°
47°
4
79°
50°
5
79°
51°
6
80°
50°
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 61° to 80°, with overnight lows between 35° and 51°. The average high for May is 70° with an average low of 43°. 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.
