S
M
T
W
T
F
S
31
75°
56°
1
76°
57°
2
80°
61°
3
86°
60°
4
88°
61°
5
88°
62°
6
89°
61°
7
90°
58°
8
89°
56°
9
85°
53°
10
85°
53°
11
82°
54°
12
84°
53°
13
85°
53°
14
82°
54°
15
82°
54°
16
83°
53°
17
82°
54°
18
81°
60°
19
83°
65°
20
91°
65°
21
93°
62°
22
93°
62°
23
92°
63°
24
93°
64°
25
93°
64°
26
94°
63°
27
94°
64°
28
93°
62°
29
93°
63°
30
94°
66°
1
95°
65°
2
94°
64°
3
93°
60°
4
90°
58°
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 75° to 95°, with overnight lows between 53° and 66°. The average high for June is 88° with an average low of 60°. 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.
