S
M
T
W
T
F
S
26
57°
36°
27
48°
32°
28
55°
27°
29
55°
36°
30
59°
37°
1
66°
36°
2
68°
37°
3
73°
39°
4
73°
45°
5
68°
48°
6
70°
32°
7
73°
46°
8
75°
45°
9
73°
37°
10
75°
43°
11
81°
46°
12
84°
48°
13
79°
54°
14
67°
37°
15
65°
39°
16
57°
32°
17
47°
28°
18
56°
35°
19
61°
35°
20
65°
39°
21
71°
41°
22
68°
42°
23
64°
43°
24
67°
41°
25
68°
44°
26
72°
43°
27
67°
40°
28
60°
36°
29
62°
42°
30
61°
41°
31
66°
42°
1
72°
47°
2
72°
46°
3
71°
47°
4
71°
43°
5
61°
36°
6
61°
36°
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 47° to 72°, with overnight lows between 28° and 47°. The average high for May is 65° with an average low of 40°. 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.
