S
M
T
W
T
F
S
26
60°
38°
27
69°
38°
28
60°
47°
29
54°
48°
30
51°
39°
1
51°
35°
2
46°
36°
3
53°
35°
4
69°
44°
5
75°
50°
6
55°
42°
7
53°
36°
8
53°
36°
9
53°
43°
10
61°
41°
11
56°
34°
12
59°
32°
13
61°
46°
14
48°
42°
15
61°
41°
16
76°
47°
17
83°
57°
18
87°
66°
19
84°
70°
20
72°
49°
21
58°
45°
22
62°
40°
23
54°
45°
24
56°
45°
25
69°
53°
26
82°
59°
27
80°
50°
28
63°
48°
29
70°
47°
30
61°
40°
31
68°
42°
1
66°
43°
2
66°
41°
3
67°
48°
4
73°
49°
5
77°
53°
6
76°
51°
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 61° to 82°, with overnight lows between 40° and 59°. The average high for May is 71° with an average low of 48°. 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.
