S
M
T
W
T
F
S
31
86°
75°
1
88°
73°
2
93°
72°
3
82°
68°
4
84°
67°
5
84°
68°
6
86°
70°
7
91°
71°
8
89°
74°
9
86°
71°
10
85°
70°
11
84°
72°
12
89°
72°
13
89°
73°
14
90°
72°
15
89°
72°
16
88°
71°
17
87°
74°
18
88°
73°
19
87°
74°
20
87°
74°
21
88°
73°
22
89°
74°
23
90°
75°
24
87°
74°
25
87°
73°
26
88°
73°
27
87°
75°
28
89°
75°
29
88°
74°
30
89°
75°
1
90°
74°
2
87°
75°
3
86°
73°
4
83°
72°
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 82° to 91°, with overnight lows between 67° and 75°. The average high for June is 87° with an average low of 73°. 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.
