S
M
T
W
T
F
S
31
68°
46°
1
73°
39°
2
81°
52°
3
79°
52°
4
81°
50°
5
82°
52°
6
95°
66°
7
95°
52°
8
77°
50°
9
82°
54°
10
77°
46°
11
66°
43°
12
81°
45°
13
61°
37°
14
68°
34°
15
77°
37°
16
88°
46°
17
72°
52°
18
75°
46°
19
77°
50°
20
72°
54°
21
72°
54°
22
75°
54°
23
72°
54°
24
68°
52°
25
66°
55°
26
88°
48°
27
86°
63°
28
81°
54°
29
77°
50°
30
86°
43°
1
86°
57°
2
90°
64°
3
82°
55°
4
90°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Newcastle
Newcastle's June 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for June 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 June weather will actually feel in Newcastle. See also: July | August | September.