S
M
T
W
T
F
S
26
64°
41°
27
68°
45°
28
57°
45°
29
68°
43°
30
72°
50°
1
61°
50°
2
59°
50°
3
59°
48°
4
57°
52°
5
59°
50°
6
57°
46°
7
57°
50°
8
63°
46°
9
66°
45°
10
61°
39°
11
57°
37°
12
61°
37°
13
57°
46°
14
54°
45°
15
55°
37°
16
55°
39°
17
57°
46°
18
55°
48°
19
59°
54°
20
57°
54°
21
68°
55°
22
61°
52°
23
61°
45°
24
73°
45°
25
84°
50°
26
82°
55°
27
N/A
28
69°
56°
29
64°
51°
30
63°
55°
31
62°
57°
1
61°
55°
2
61°
53°
3
60°
54°
4
61°
53°
5
59°
53°
6
61°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Letterston
Letterston's May 2026 forecast shows daily high temperatures ranging from 59° to 69°, with overnight lows between 51° and 57°. The average high for May is 62° with an average low of 54°. 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 Letterston. See also: June | July | August.