S
M
T
W
T
F
S
28
64°
55°
29
66°
55°
30
66°
57°
1
63°
59°
2
64°
57°
3
64°
57°
4
68°
61°
5
70°
59°
6
72°
59°
7
77°
59°
8
81°
57°
9
73°
59°
10
73°
59°
11
72°
61°
12
73°
61°
13
70°
57°
14
68°
55°
15
73°
57°
16
77°
61°
17
75°
59°
18
68°
57°
19
70°
55°
20
68°
57°
21
66°
57°
22
72°
57°
23
68°
59°
24
72°
59°
25
68°
59°
26
64°
59°
27
70°
57°
28
77°
66°
29
70°
57°
30
66°
54°
31
64°
50°
1
68°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Newcastle
Newcastle's July 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for July is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Newcastle. See also: August | September | October.