S
M
T
W
T
F
S
26
67°
47°
27
70°
45°
28
62°
42°
29
64°
41°
30
61°
38°
1
65°
45°
2
64°
40°
3
62°
39°
4
65°
43°
5
72°
46°
6
73°
50°
7
73°
50°
8
74°
51°
9
75°
51°
10
75°
52°
11
73°
48°
12
64°
48°
13
66°
50°
14
67°
48°
15
65°
47°
16
67°
49°
17
65°
48°
18
75°
51°
19
70°
46°
20
71°
45°
21
69°
43°
22
68°
44°
23
69°
47°
24
71°
47°
25
68°
49°
26
68°
55°
27
74°
48°
28
74°
55°
29
77°
57°
30
80°
54°
31
79°
48°
1
72°
52°
2
79°
55°
3
80°
49°
4
78°
57°
5
80°
50°
6
74°
49°
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 80°, with overnight lows between 38° and 57°. 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.
