S
M
T
W
T
F
S
31
82°
73°
1
91°
71°
2
82°
66°
3
81°
70°
4
88°
69°
5
84°
73°
6
84°
70°
7
88°
68°
8
93°
78°
9
91°
75°
10
90°
76°
11
91°
76°
12
90°
73°
13
90°
68°
14
76°
63°
15
79°
61°
16
86°
70°
17
94°
76°
18
86°
67°
19
86°
68°
20
87°
73°
21
91°
72°
22
89°
70°
23
89°
71°
24
92°
72°
25
93°
72°
26
95°
74°
27
91°
74°
28
90°
73°
29
91°
74°
30
86°
73°
1
85°
74°
2
92°
75°
3
88°
74°
4
88°
75°
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 76° to 95°, with overnight lows between 61° and 76°. The average high for June is 88° with an average low of 71°. 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.
