S
M
T
W
T
F
S
26
63°
44°
27
75°
35°
28
72°
51°
29
65°
49°
30
52°
35°
1
57°
32°
2
48°
31°
3
60°
31°
4
73°
48°
5
74°
58°
6
57°
48°
7
60°
35°
8
63°
35°
9
67°
49°
10
63°
43°
11
63°
37°
12
69°
37°
13
66°
48°
14
54°
43°
15
67°
38°
16
74°
44°
17
83°
53°
18
88°
60°
19
86°
66°
20
75°
51°
21
60°
51°
22
63°
52°
23
60°
56°
24
76°
62°
25
74°
61°
26
78°
59°
27
77°
58°
28
79°
57°
29
76°
56°
30
75°
58°
31
77°
60°
1
78°
57°
2
76°
55°
3
78°
53°
4
79°
59°
5
78°
59°
6
77°
58°
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 60° to 79°, with overnight lows between 51° and 62°. The average high for May is 74° with an average low of 57°. 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.
