S
M
T
W
T
F
S
28
76°
60°
29
75°
61°
30
76°
58°
1
72°
55°
2
72°
56°
3
73°
61°
4
72°
60°
5
73°
59°
6
73°
58°
7
74°
62°
8
80°
63°
9
81°
60°
10
74°
59°
11
74°
62°
12
75°
63°
13
75°
60°
14
74°
57°
15
75°
63°
16
77°
63°
17
75°
62°
18
76°
58°
19
74°
60°
20
74°
64°
21
76°
64°
22
75°
63°
23
75°
62°
24
76°
60°
25
75°
62°
26
76°
62°
27
78°
64°
28
76°
62°
29
79°
62°
30
80°
65°
31
77°
59°
1
78°
64°
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 72° to 81°, with overnight lows between 55° and 65°. The average high for July is 75° with an average low of 61°. 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.