S
M
T
W
T
F
S
31
80°
51°
1
79°
53°
2
81°
55°
3
86°
56°
4
89°
58°
5
88°
57°
6
85°
56°
7
86°
57°
8
84°
58°
9
87°
57°
10
90°
59°
11
91°
59°
12
90°
58°
13
91°
59°
14
91°
60°
15
86°
59°
16
83°
59°
17
84°
58°
18
86°
60°
19
84°
60°
20
84°
59°
21
85°
59°
22
85°
60°
23
87°
61°
24
91°
61°
25
92°
62°
26
93°
61°
27
92°
62°
28
94°
62°
29
93°
60°
30
93°
60°
1
92°
59°
2
87°
58°
3
84°
61°
4
85°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Portal
Portal's June 2026 forecast shows daily high temperatures ranging from 79° to 94°, with overnight lows between 51° and 62°. The average high for June is 87° with an average low of 59°. 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 Portal. See also: July | August | September.