S
M
T
W
T
F
S
31
89°
58°
1
94°
62°
2
92°
58°
3
95°
58°
4
96°
61°
5
99°
59°
6
91°
51°
7
85°
52°
8
84°
54°
9
82°
54°
10
85°
55°
11
102°
65°
12
102°
66°
13
104°
67°
14
103°
68°
15
90°
59°
16
93°
63°
17
95°
64°
18
95°
64°
19
94°
63°
20
95°
64°
21
95°
64°
22
96°
63°
23
96°
64°
24
95°
64°
25
96°
65°
26
95°
64°
27
96°
64°
28
95°
65°
29
96°
65°
30
95°
64°
1
97°
66°
2
97°
66°
3
96°
67°
4
97°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Herndon
Herndon's June 2026 forecast shows daily high temperatures ranging from 82° to 104°, with overnight lows between 51° and 68°. The average high for June is 95° with an average low of 62°. 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 Herndon. See also: July | August | September.
