S
M
T
W
T
F
S
26
92°
68°
27
94°
68°
28
95°
67°
29
96°
68°
30
97°
69°
31
96°
67°
1
89°
63°
2
89°
63°
3
93°
66°
4
91°
63°
5
90°
64°
6
94°
66°
7
93°
65°
8
88°
66°
9
91°
66°
10
94°
67°
11
96°
66°
12
95°
61°
13
92°
60°
14
90°
61°
15
91°
60°
16
92°
63°
17
92°
66°
18
96°
65°
19
96°
64°
20
94°
60°
21
92°
58°
22
88°
58°
23
87°
57°
24
87°
61°
25
88°
59°
26
93°
61°
27
93°
63°
28
94°
65°
29
95°
65°
30
93°
64°
31
94°
63°
1
93°
60°
2
91°
59°
3
90°
61°
4
91°
62°
5
93°
65°
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 87° to 97°, with overnight lows between 57° and 69°. The average high for August is 92° with an average low of 63°. 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.
