S
M
T
W
T
F
S
26
69°
51°
27
57°
50°
28
63°
48°
29
67°
54°
30
66°
56°
1
59°
55°
2
60°
53°
3
62°
51°
4
70°
53°
5
73°
64°
6
76°
67°
7
71°
54°
8
64°
53°
9
73°
63°
10
76°
64°
11
71°
54°
12
64°
52°
13
71°
58°
14
68°
57°
15
68°
54°
16
75°
61°
17
80°
68°
18
92°
68°
19
89°
66°
20
90°
71°
21
88°
64°
22
80°
67°
23
80°
67°
24
81°
66°
25
77°
65°
26
78°
61°
27
80°
63°
28
79°
63°
29
78°
62°
30
77°
61°
31
78°
62°
1
82°
65°
2
78°
65°
3
78°
66°
4
79°
66°
5
78°
65°
6
79°
66°
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 77° to 92°, with overnight lows between 61° and 71°. The average high for May is 81° with an average low of 65°. 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.
