S
M
T
W
T
F
S
31
82°
53°
1
87°
61°
2
87°
63°
3
89°
65°
4
89°
61°
5
90°
64°
6
78°
58°
7
80°
53°
8
75°
56°
9
81°
54°
10
91°
57°
11
95°
66°
12
95°
71°
13
96°
69°
14
93°
69°
15
92°
67°
16
91°
65°
17
89°
63°
18
83°
58°
19
77°
54°
20
83°
53°
21
86°
58°
22
89°
63°
23
90°
65°
24
90°
63°
25
85°
59°
26
78°
56°
27
73°
56°
28
80°
56°
29
83°
58°
30
87°
60°
1
85°
57°
2
85°
59°
3
88°
61°
4
91°
66°
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 91° to 91°, with overnight lows between 66° and 66°. The average high for June is 91° with an average low of 66°. 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.
