S
M
T
W
T
F
S
26
89°
63°
27
86°
65°
28
90°
58°
29
92°
61°
30
92°
71°
1
95°
71°
2
85°
66°
3
80°
57°
4
84°
58°
5
87°
57°
6
95°
60°
7
95°
68°
8
95°
73°
9
91°
70°
10
91°
69°
11
94°
70°
12
88°
71°
13
90°
70°
14
90°
67°
15
93°
63°
16
95°
67°
17
93°
73°
18
93°
65°
19
89°
72°
20
92°
67°
21
91°
69°
22
94°
70°
23
94°
70°
24
92°
68°
25
93°
69°
26
92°
70°
27
91°
69°
28
90°
68°
29
90°
66°
30
88°
68°
31
87°
67°
1
89°
66°
2
89°
69°
3
90°
69°
4
88°
68°
5
90°
69°
6
89°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fairfield
Fairfield's May 2026 forecast shows daily high temperatures ranging from 87° to 94°, with overnight lows between 66° and 70°. The average high for May is 91° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Fairfield. See also: June | July | August.
