S
M
T
W
T
F
S
26
64°
59°
27
70°
57°
28
77°
66°
29
70°
57°
30
66°
54°
31
64°
50°
1
68°
52°
2
68°
52°
3
70°
59°
4
73°
59°
5
63°
55°
6
64°
54°
7
70°
54°
8
70°
54°
9
64°
54°
10
66°
52°
11
73°
52°
12
75°
61°
13
81°
63°
14
70°
59°
15
64°
57°
16
63°
55°
17
64°
59°
18
64°
57°
19
66°
55°
20
63°
54°
21
63°
52°
22
63°
50°
23
64°
50°
24
70°
46°
25
66°
59°
26
68°
61°
27
70°
61°
28
72°
59°
29
61°
54°
30
68°
55°
31
64°
57°
1
66°
57°
2
72°
57°
3
68°
59°
4
66°
55°
5
64°
54°
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.
