S
M
T
W
T
F
S
26
104°
68°
27
90°
64°
28
95°
64°
29
97°
63°
30
84°
57°
31
88°
52°
1
95°
59°
2
102°
73°
3
81°
50°
4
72°
45°
5
86°
50°
6
95°
61°
7
88°
55°
8
97°
59°
9
95°
61°
10
95°
59°
11
97°
61°
12
75°
61°
13
72°
59°
14
86°
61°
15
77°
59°
16
82°
52°
17
88°
55°
18
81°
55°
19
88°
52°
20
91°
55°
21
97°
66°
22
86°
61°
23
90°
64°
24
90°
57°
25
84°
59°
26
86°
55°
27
92°
62°
28
93°
61°
29
90°
61°
30
86°
57°
31
82°
46°
1
79°
61°
2
90°
54°
3
90°
61°
4
95°
59°
5
91°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Newcastle
Newcastle's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August 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 August weather will actually feel in Newcastle. See also: September | October | November.
