S
M
T
W
T
F
S
31
85°
78°
1
87°
79°
2
86°
78°
3
84°
76°
4
83°
76°
5
85°
77°
6
88°
79°
7
85°
81°
8
86°
81°
9
88°
81°
10
88°
81°
11
88°
81°
12
88°
81°
13
90°
80°
14
89°
81°
15
86°
79°
16
82°
76°
17
86°
77°
18
89°
83°
19
90°
81°
20
88°
81°
21
90°
83°
22
90°
82°
23
89°
80°
24
91°
79°
25
90°
80°
26
91°
82°
27
90°
81°
28
90°
81°
29
91°
82°
30
90°
81°
1
91°
81°
2
94°
82°
3
90°
81°
4
91°
82°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Galveston
Galveston's June 2026 forecast shows daily high temperatures ranging from 88° to 94°, with overnight lows between 79° and 83°. The average high for June is 90° with an average low of 81°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Galveston. See also: July | August | September.
