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
93°
72°
21
92°
71°
22
95°
73°
23
97°
74°
24
92°
75°
25
91°
73°
26
93°
73°
27
94°
75°
28
95°
76°
29
93°
74°
30
87°
74°
1
88°
74°
2
90°
76°
3
94°
75°
4
93°
74°
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 87° to 95°, with overnight lows between 73° and 76°. The average high for June is 92° with an average low of 75°. 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.
