S
M
T
W
T
F
S
26
61°
43°
27
74°
39°
28
73°
51°
29
62°
49°
30
52°
40°
1
53°
36°
2
46°
34°
3
59°
34°
4
72°
49°
5
73°
57°
6
57°
47°
7
61°
37°
8
62°
40°
9
68°
49°
10
64°
48°
11
63°
39°
12
69°
40°
13
68°
48°
14
57°
42°
15
68°
39°
16
72°
51°
17
82°
60°
18
90°
70°
19
88°
63°
20
70°
46°
21
64°
52°
22
65°
59°
23
69°
59°
24
74°
58°
25
73°
56°
26
74°
57°
27
73°
58°
28
75°
57°
29
76°
54°
30
76°
56°
31
79°
52°
1
73°
56°
2
74°
57°
3
74°
57°
4
70°
55°
5
69°
53°
6
71°
57°
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 64° to 90°, with overnight lows between 46° and 70°. 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.
