S
M
T
W
T
F
S
1
87°
63°
2
86°
68°
3
85°
69°
4
86°
72°
5
91°
72°
6
92°
75°
7
94°
78°
8
92°
79°
9
92°
77°
10
92°
75°
11
90°
71°
12
88°
76°
13
90°
74°
14
90°
74°
15
91°
73°
16
92°
73°
17
93°
74°
18
91°
74°
19
93°
74°
20
91°
73°
21
92°
73°
22
89°
74°
23
89°
73°
24
92°
72°
25
92°
74°
26
90°
74°
27
89°
72°
28
91°
72°
29
89°
71°
30
89°
74°
1
88°
73°
2
91°
74°
3
89°
75°
4
88°
73°
5
88°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Newcastle
Newcastle's June 2025 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.