S
M
T
W
T
F
S
31
90°
72°
1
94°
77°
2
93°
70°
3
84°
69°
4
82°
69°
5
84°
73°
6
84°
74°
7
86°
73°
8
88°
72°
9
90°
71°
10
89°
73°
11
88°
73°
12
89°
72°
13
90°
73°
14
90°
72°
15
91°
70°
16
90°
72°
17
88°
72°
18
86°
73°
19
86°
73°
20
88°
72°
21
88°
73°
22
89°
73°
23
90°
72°
24
89°
74°
25
88°
73°
26
86°
71°
27
89°
73°
28
88°
74°
29
89°
73°
30
90°
72°
1
91°
72°
2
92°
74°
3
93°
75°
4
93°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Sam Houston
Sam Houston's June 2026 forecast shows daily high temperatures ranging from 82° to 93°, with overnight lows between 69° and 75°. The average high for June is 89° with an average low of 72°. 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 Sam Houston. See also: July | August | September.