S
M
T
W
T
F
S
26
64°
54°
27
66°
50°
28
77°
61°
29
73°
61°
30
70°
50°
31
66°
45°
1
64°
48°
2
70°
48°
3
66°
55°
4
73°
61°
5
68°
55°
6
61°
54°
7
68°
52°
8
77°
52°
9
68°
52°
10
68°
46°
11
79°
45°
12
85°
62°
13
88°
62°
14
77°
55°
15
68°
50°
16
65°
55°
17
66°
57°
18
69°
55°
19
65°
50°
20
64°
51°
21
65°
52°
22
64°
50°
23
64°
50°
24
66°
52°
25
63°
52°
26
63°
51°
27
64°
52°
28
63°
51°
29
66°
54°
30
64°
51°
31
63°
55°
1
64°
52°
2
62°
50°
3
62°
53°
4
65°
56°
5
67°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Newcastle upon Tyne
Newcastle upon Tyne's August 2026 forecast shows daily high temperatures ranging from 62° to 88°, with overnight lows between 50° and 62°. The average high for August is 67° with an average low of 53°. 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 upon Tyne. See also: September | October | November.