S
M
T
W
T
F
S
29
53°
33°
30
72°
43°
31
75°
41°
1
N/A
2
62°
59°
3
72°
43°
4
69°
38°
5
43°
31°
6
47°
30°
7
40°
26°
8
52°
42°
9
58°
40°
10
63°
42°
11
62°
40°
12
57°
42°
13
61°
46°
14
65°
44°
15
61°
37°
16
53°
34°
17
49°
33°
18
51°
42°
19
60°
46°
20
64°
47°
21
66°
48°
22
66°
48°
23
65°
49°
24
67°
49°
25
68°
47°
26
66°
38°
27
54°
37°
28
53°
40°
29
58°
45°
30
56°
43°
1
57°
43°
2
59°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Oldcastle
Oldcastle's April 2026 forecast shows daily high temperatures ranging from 40° to 72°, with overnight lows between 26° and 59°. The average high for April is 59° with an average low of 42°. 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 Oldcastle. See also: May | June | July.