S
M
T
W
T
F
S
26
71°
48°
27
62°
46°
28
63°
42°
29
62°
46°
30
69°
50°
1
66°
47°
2
63°
43°
3
63°
44°
4
64°
45°
5
67°
51°
6
72°
52°
7
73°
50°
8
67°
50°
9
65°
52°
10
66°
53°
11
73°
54°
12
75°
55°
13
75°
54°
14
74°
55°
15
69°
48°
16
69°
47°
17
70°
48°
18
69°
50°
19
72°
47°
20
69°
48°
21
69°
54°
22
73°
55°
23
74°
56°
24
75°
52°
25
74°
51°
26
70°
51°
27
73°
50°
28
73°
52°
29
74°
52°
30
76°
50°
31
75°
51°
1
74°
59°
2
75°
59°
3
79°
56°
4
79°
56°
5
80°
59°
6
80°
61°
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 62° to 80°, with overnight lows between 42° and 61°. The average high for May is 71° with an average low of 51°. 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.
