S
M
T
W
T
F
S
31
89°
58°
1
94°
62°
2
95°
64°
3
96°
58°
4
96°
60°
5
99°
62°
6
95°
54°
7
85°
52°
8
84°
54°
9
82°
54°
10
85°
55°
11
97°
65°
12
102°
66°
13
104°
67°
14
103°
67°
15
104°
68°
16
91°
59°
17
94°
64°
18
95°
63°
19
94°
67°
20
97°
64°
21
95°
63°
22
94°
64°
23
93°
64°
24
94°
63°
25
94°
63°
26
92°
62°
27
95°
64°
28
96°
65°
29
97°
65°
30
97°
64°
1
96°
65°
2
97°
66°
3
97°
66°
4
96°
65°
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 52° 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.
