S
M
T
W
T
F
S
29
63°
29°
30
73°
53°
31
83°
59°
1
87°
63°
2
84°
54°
3
83°
53°
4
86°
65°
5
75°
49°
6
65°
40°
7
N/A
8
58°
34°
9
66°
41°
10
78°
56°
11
76°
52°
12
72°
55°
13
86°
60°
14
90°
64°
15
89°
61°
16
79°
54°
17
69°
51°
18
72°
53°
19
72°
57°
20
76°
57°
21
80°
47°
22
76°
51°
23
69°
49°
24
70°
54°
25
78°
54°
26
76°
53°
27
71°
47°
28
67°
49°
29
68°
47°
30
68°
46°
1
71°
55°
2
78°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Dumbarton
Dumbarton's April 2026 forecast shows daily high temperatures ranging from 58° to 90°, with overnight lows between 34° and 64°. The average high for April is 74° with an average low of 52°. 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 Dumbarton. See also: May | June | July.
