S
M
T
W
T
F
S
29
70°
61°
30
73°
63°
31
73°
63°
1
74°
66°
2
76°
69°
3
74°
68°
4
72°
68°
5
70°
67°
6
69°
59°
7
77°
60°
8
76°
69°
9
N/A
10
89°
68°
11
79°
53°
12
73°
50°
13
72°
49°
14
75°
53°
15
77°
57°
16
81°
56°
17
77°
54°
18
71°
53°
19
74°
54°
20
76°
55°
21
78°
56°
22
71°
59°
23
75°
57°
24
71°
54°
25
71°
58°
26
70°
58°
27
69°
57°
28
70°
58°
29
70°
58°
30
73°
57°
1
69°
57°
2
71°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Newcastle
Newcastle's April 2026 forecast shows daily high temperatures ranging from 69° to 89°, with overnight lows between 49° and 68°. The average high for April is 74° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Newcastle. See also: May | June | July.