S
M
T
W
T
F
S
26
68°
50°
27
77°
43°
28
76°
59°
29
66°
46°
30
60°
40°
1
56°
37°
2
55°
31°
3
64°
50°
4
73°
56°
5
69°
53°
6
60°
46°
7
55°
38°
8
61°
44°
9
66°
50°
10
69°
48°
11
67°
49°
12
68°
48°
13
70°
53°
14
75°
54°
15
70°
51°
16
77°
57°
17
78°
56°
18
75°
57°
19
76°
57°
20
78°
53°
21
75°
50°
22
71°
48°
23
69°
48°
24
71°
51°
25
70°
51°
26
70°
50°
27
71°
50°
28
72°
51°
29
73°
52°
30
74°
56°
31
78°
59°
1
74°
56°
2
75°
54°
3
77°
58°
4
77°
58°
5
79°
61°
6
83°
63°
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 55° to 83°, with overnight lows between 31° and 63°. The average high for May is 71° with an average low of 52°. 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.
