S
M
T
W
T
F
S
31
82°
53°
1
87°
61°
2
87°
63°
3
89°
65°
4
89°
63°
5
91°
60°
6
81°
54°
7
83°
56°
8
69°
53°
9
69°
52°
10
72°
53°
11
82°
62°
12
89°
61°
13
94°
68°
14
96°
70°
15
98°
69°
16
97°
67°
17
86°
58°
18
89°
61°
19
89°
65°
20
91°
62°
21
90°
61°
22
87°
60°
23
85°
59°
24
87°
58°
25
86°
58°
26
85°
59°
27
88°
62°
28
92°
64°
29
92°
64°
30
93°
63°
1
91°
63°
2
92°
64°
3
93°
64°
4
88°
62°
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 69° to 98°, with overnight lows between 52° and 70°. The average high for June is 88° with an average low of 61°. 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.
