S
M
T
W
T
F
S
31
70°
59°
1
82°
57°
2
84°
61°
3
84°
59°
4
81°
61°
5
78°
61°
6
87°
66°
7
89°
70°
8
86°
66°
9
88°
68°
10
94°
71°
11
93°
71°
12
89°
66°
13
80°
60°
14
80°
57°
15
74°
55°
16
75°
55°
17
79°
58°
18
75°
59°
19
77°
62°
20
83°
57°
21
76°
54°
22
75°
62°
23
82°
65°
24
85°
63°
25
84°
59°
26
75°
58°
27
77°
62°
28
79°
64°
29
80°
64°
30
79°
63°
1
77°
64°
2
79°
65°
3
84°
66°
4
85°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Fairfax
Fairfax's June 2026 forecast shows daily high temperatures ranging from 74° to 94°, with overnight lows between 54° and 71°. The average high for June is 81° 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 Fairfax. See also: July | August | September.