S
M
T
W
T
F
S
31
N/A
1
65°
52°
2
68°
59°
3
70°
56°
4
66°
53°
5
64°
49°
6
63°
50°
7
67°
48°
8
67°
47°
9
68°
49°
10
70°
49°
11
68°
49°
12
67°
50°
13
63°
51°
14
66°
53°
15
67°
51°
16
65°
51°
17
62°
50°
18
62°
50°
19
66°
49°
20
66°
50°
21
65°
50°
22
61°
49°
23
61°
50°
24
63°
49°
25
62°
49°
26
66°
50°
27
66°
48°
28
64°
49°
29
66°
49°
30
61°
46°
1
60°
46°
2
62°
45°
3
61°
48°
4
61°
48°
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 60° to 70°, with overnight lows between 45° and 59°. The average high for June is 65° 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.
