S
M
T
W
T
F
S
31
86°
75°
1
88°
73°
2
93°
72°
3
80°
72°
4
83°
67°
5
84°
63°
6
86°
63°
7
87°
65°
8
89°
67°
9
88°
70°
10
86°
73°
11
90°
71°
12
95°
76°
13
95°
76°
14
92°
76°
15
95°
78°
16
90°
75°
17
93°
75°
18
96°
78°
19
90°
73°
20
N/A
21
89°
73°
22
92°
75°
23
95°
74°
24
94°
72°
25
91°
74°
26
92°
73°
27
94°
75°
28
95°
76°
29
90°
74°
30
91°
75°
1
92°
74°
2
91°
75°
3
92°
73°
4
90°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
June Weather in Newcastle
Newcastle's June 2026 forecast shows daily high temperatures ranging from 89° to 95°, with overnight lows between 72° and 76°. The average high for June is 92° with an average low of 74°. 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.
