S
M
T
W
T
F
S
29
85°
75°
30
85°
76°
31
85°
76°
1
86°
75°
2
87°
78°
3
86°
78°
4
86°
78°
5
87°
78°
6
86°
78°
7
88°
78°
8
86°
79°
9
86°
78°
10
86°
78°
11
87°
78°
12
87°
77°
13
87°
77°
14
85°
79°
15
88°
80°
16
86°
79°
17
86°
78°
18
87°
76°
19
88°
75°
20
85°
76°
21
87°
77°
22
86°
77°
23
88°
77°
24
86°
77°
25
88°
79°
26
89°
79°
27
87°
79°
28
87°
78°
29
86°
78°
30
87°
78°
1
88°
78°
2
87°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Castries
Castries's April 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for April 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 April weather will actually feel in Castries. See also: May | June | July.