S
M
T
W
T
F
S
31
81°
63°
1
82°
62°
2
81°
55°
3
84°
60°
4
86°
62°
5
86°
66°
6
89°
67°
7
91°
70°
8
85°
69°
9
86°
70°
10
88°
69°
11
90°
69°
12
90°
68°
13
86°
67°
14
88°
65°
15
87°
64°
16
83°
64°
17
82°
66°
18
83°
68°
19
82°
68°
20
82°
69°
21
84°
69°
22
85°
68°
23
84°
67°
24
85°
68°
25
87°
69°
26
87°
70°
27
88°
69°
28
85°
70°
29
85°
68°
30
86°
64°
1
84°
64°
2
85°
69°
3
84°
71°
4
86°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Fairfield
Fairfield's June 2026 forecast shows daily high temperatures ranging from 81° to 91°, with overnight lows between 55° and 71°. The average high for June is 86° with an average low of 67°. 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 Fairfield. See also: July | August | September.