S
M
T
W
T
F
S
31
66°
54°
1
N/A
2
64°
49°
3
62°
50°
4
59°
45°
5
58°
45°
6
61°
47°
7
64°
50°
8
63°
48°
9
66°
49°
10
68°
50°
11
69°
51°
12
71°
50°
13
69°
51°
14
70°
52°
15
62°
46°
16
63°
52°
17
62°
49°
18
62°
47°
19
63°
48°
20
62°
50°
21
63°
52°
22
63°
53°
23
64°
53°
24
65°
52°
25
63°
50°
26
62°
50°
27
64°
48°
28
63°
49°
29
63°
54°
30
64°
53°
1
64°
49°
2
65°
54°
3
65°
54°
4
66°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
June Weather in Newcastle
Newcastle's June 2026 forecast shows daily high temperatures ranging from 58° to 71°, with overnight lows between 45° and 54°. The average high for June is 64° with an average low of 50°. 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.
