S
M
T
W
T
F
S
26
69°
43°
27
67°
51°
28
62°
46°
29
52°
35°
30
53°
30°
1
50°
29°
2
60°
29°
3
71°
50°
4
78°
37°
5
55°
33°
6
50°
32°
7
55°
37°
8
62°
34°
9
65°
42°
10
64°
41°
11
63°
44°
12
65°
48°
13
69°
47°
14
64°
46°
15
69°
48°
16
69°
50°
17
70°
47°
18
71°
52°
19
73°
51°
20
71°
50°
21
68°
43°
22
64°
42°
23
65°
44°
24
66°
44°
25
65°
45°
26
66°
45°
27
66°
46°
28
67°
45°
29
68°
52°
30
68°
55°
31
71°
51°
1
73°
53°
2
75°
56°
3
75°
57°
4
79°
57°
5
79°
58°
6
78°
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 50° to 79°, with overnight lows between 32° and 59°. The average high for May is 68° with an average low of 47°. 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.
