S
M
T
W
T
F
S
31
73°
52°
1
73°
49°
2
68°
48°
3
71°
51°
4
74°
53°
5
74°
54°
6
73°
53°
7
68°
52°
8
66°
50°
9
67°
54°
10
73°
56°
11
75°
55°
12
74°
51°
13
68°
48°
14
67°
50°
15
67°
50°
16
68°
48°
17
70°
55°
18
72°
55°
19
72°
50°
20
75°
51°
21
77°
49°
22
78°
56°
23
79°
49°
24
74°
50°
25
71°
51°
26
71°
53°
27
72°
58°
28
76°
50°
29
77°
57°
30
80°
51°
1
73°
50°
2
73°
50°
3
74°
53°
4
74°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Morriston
Morriston's June 2026 forecast shows daily high temperatures ranging from 66° to 80°, with overnight lows between 48° and 58°. The average high for June is 72° with an average low of 52°. 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 Morriston. See also: July | August | September.