S
M
T
W
T
F
S
26
52°
42°
27
64°
38°
28
64°
42°
29
60°
47°
30
59°
43°
1
61°
44°
2
57°
39°
3
58°
44°
4
63°
52°
5
67°
51°
6
65°
57°
7
66°
50°
8
61°
48°
9
62°
49°
10
64°
50°
11
62°
49°
12
63°
50°
13
62°
49°
14
64°
47°
15
64°
53°
16
65°
51°
17
65°
48°
18
66°
55°
19
72°
56°
20
71°
56°
21
67°
55°
22
73°
53°
23
65°
52°
24
67°
54°
25
68°
52°
26
67°
53°
27
66°
55°
28
68°
58°
29
75°
59°
30
73°
58°
31
73°
57°
1
70°
52°
2
68°
52°
3
68°
53°
4
70°
52°
5
69°
53°
6
70°
53°
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 57° to 75°, with overnight lows between 39° and 59°. The average high for May is 66° 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.
