S
M
T
W
T
F
S
31
64°
49°
1
68°
50°
2
70°
51°
3
71°
51°
4
70°
50°
5
68°
50°
6
66°
49°
7
67°
47°
8
67°
48°
9
66°
51°
10
66°
47°
11
65°
46°
12
65°
46°
13
66°
47°
14
66°
46°
15
68°
47°
16
71°
52°
17
69°
51°
18
70°
50°
19
71°
52°
20
69°
52°
21
67°
51°
22
67°
51°
23
68°
53°
24
68°
48°
25
71°
52°
26
71°
49°
27
72°
48°
28
70°
50°
29
73°
49°
30
72°
49°
1
74°
53°
2
75°
54°
3
76°
55°
4
75°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Llanwern
Llanwern's June 2026 forecast shows daily high temperatures ranging from 64° to 76°, with overnight lows between 46° and 55°. The average high for June is 69° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Llanwern. See also: July | August | September.
