S
M
T
W
T
F
S
26
50°
35°
27
61°
37°
28
51°
39°
29
40°
36°
30
39°
35°
1
41°
35°
2
38°
34°
3
46°
36°
4
57°
38°
5
48°
37°
6
41°
35°
7
42°
36°
8
49°
37°
9
53°
38°
10
42°
37°
11
39°
36°
12
50°
35°
13
44°
38°
14
52°
38°
15
55°
39°
16
60°
44°
17
59°
41°
18
77°
44°
19
66°
42°
20
43°
39°
21
47°
39°
22
57°
39°
23
50°
44°
24
49°
40°
25
60°
40°
26
62°
46°
27
53°
44°
28
52°
42°
29
57°
42°
30
48°
42°
31
51°
42°
1
53°
43°
2
54°
46°
3
60°
47°
4
72°
51°
5
72°
55°
6
63°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Thornbury
Thornbury's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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 Thornbury. See also: June | July | August.