S
M
T
W
T
F
S
26
63°
34°
27
61°
45°
28
54°
36°
29
61°
36°
30
66°
36°
1
73°
32°
2
63°
48°
3
52°
46°
4
59°
43°
5
54°
37°
6
52°
36°
7
55°
37°
8
61°
46°
9
52°
43°
10
54°
36°
11
50°
37°
12
59°
39°
13
52°
41°
14
55°
39°
15
52°
39°
16
59°
37°
17
57°
45°
18
56°
44°
19
59°
49°
20
60°
52°
21
65°
52°
22
72°
55°
23
68°
49°
24
68°
50°
25
69°
50°
26
68°
50°
27
69°
52°
28
66°
50°
29
66°
48°
30
64°
49°
31
58°
45°
1
57°
45°
2
58°
44°
3
61°
49°
4
59°
50°
5
61°
50°
6
63°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Barnard Castle
Barnard Castle's May 2026 forecast shows daily high temperatures ranging from 56° to 72°, with overnight lows between 44° and 55°. The average high for May is 63° 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 Barnard Castle. See also: June | July | August.
