S
M
T
W
T
F
S
29
73°
36°
30
78°
62°
31
83°
66°
1
80°
61°
2
80°
65°
3
82°
67°
4
76°
44°
5
59°
38°
6
67°
35°
7
N/A
8
75°
52°
9
77°
54°
10
75°
52°
11
75°
54°
12
87°
61°
13
80°
65°
14
79°
59°
15
73°
49°
16
66°
50°
17
70°
51°
18
74°
55°
19
77°
56°
20
78°
60°
21
70°
45°
22
68°
45°
23
69°
53°
24
73°
53°
25
75°
51°
26
68°
47°
27
67°
48°
28
69°
51°
29
75°
54°
30
73°
55°
1
75°
54°
2
67°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Brownsville
Brownsville's April 2026 forecast shows daily high temperatures ranging from 66° to 87°, with overnight lows between 45° and 65°. The average high for April is 73° with an average low of 53°. 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 Brownsville. See also: May | June | July.