S
M
T
W
T
F
S
31
82°
64°
1
80°
62°
2
82°
54°
3
82°
58°
4
84°
60°
5
85°
66°
6
86°
69°
7
83°
70°
8
83°
69°
9
87°
68°
10
86°
68°
11
86°
68°
12
85°
64°
13
86°
65°
14
85°
63°
15
86°
66°
16
81°
63°
17
79°
64°
18
80°
66°
19
79°
67°
20
80°
67°
21
81°
66°
22
84°
67°
23
81°
64°
24
83°
67°
25
84°
67°
26
85°
69°
27
84°
67°
28
83°
68°
29
83°
67°
30
82°
66°
1
82°
64°
2
83°
69°
3
84°
69°
4
83°
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 79° to 87°, with overnight lows between 54° and 70°. The average high for June is 83° 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.
