S
M
T
W
T
F
S
31
64°
48°
1
64°
50°
2
65°
50°
3
69°
49°
4
68°
48°
5
64°
46°
6
65°
46°
7
64°
45°
8
64°
48°
9
65°
49°
10
65°
46°
11
66°
46°
12
65°
50°
13
66°
50°
14
66°
46°
15
66°
46°
16
65°
48°
17
66°
48°
18
67°
50°
19
66°
50°
20
68°
52°
21
69°
52°
22
73°
53°
23
74°
51°
24
74°
51°
25
73°
50°
26
75°
52°
27
73°
53°
28
73°
54°
29
74°
54°
30
74°
53°
1
73°
49°
2
73°
54°
3
74°
55°
4
73°
54°
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 75°, with overnight lows between 45° 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.
