S
M
T
W
T
F
S
26
54°
43°
27
52°
39°
28
53°
40°
29
53°
36°
30
60°
44°
1
62°
45°
2
64°
38°
3
55°
38°
4
54°
39°
5
54°
37°
6
57°
37°
7
56°
41°
8
56°
42°
9
57°
40°
10
57°
39°
11
65°
46°
12
61°
42°
13
59°
42°
14
59°
40°
15
60°
40°
16
59°
41°
17
61°
51°
18
68°
51°
19
61°
50°
20
63°
46°
21
69°
50°
22
64°
44°
23
69°
46°
24
71°
48°
25
72°
52°
26
73°
53°
27
74°
54°
28
75°
55°
29
75°
53°
30
69°
55°
31
66°
55°
1
67°
54°
2
71°
53°
3
68°
54°
4
74°
46°
5
69°
59°
6
77°
59°
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 52° to 77°, with overnight lows between 36° and 59°. The average high for May is 63° with an average low of 46°. 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.
