S
M
T
W
T
F
S
28
87°
62°
29
80°
60°
30
81°
61°
1
86°
63°
2
88°
63°
3
86°
61°
4
83°
62°
5
89°
64°
6
88°
63°
7
80°
63°
8
80°
62°
9
87°
63°
10
87°
64°
11
88°
65°
12
89°
64°
13
82°
64°
14
88°
66°
15
92°
67°
16
94°
57°
17
92°
56°
18
83°
58°
19
84°
60°
20
87°
60°
21
88°
58°
22
83°
62°
23
90°
66°
24
92°
66°
25
94°
65°
26
92°
65°
27
85°
64°
28
89°
65°
29
91°
63°
30
85°
57°
31
83°
57°
1
84°
59°
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 80° to 94°, with overnight lows between 56° and 67°. The average high for July is 87° with an average low of 62°. 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.
