S
M
T
W
T
F
S
26
67°
34°
27
73°
35°
28
65°
34°
29
57°
43°
30
46°
43°
1
58°
35°
2
44°
33°
3
53°
39°
4
62°
44°
5
76°
53°
6
61°
49°
7
60°
43°
8
55°
35°
9
57°
38°
10
61°
41°
11
58°
38°
12
59°
40°
13
62°
40°
14
61°
43°
15
59°
44°
16
63°
43°
17
62°
41°
18
66°
46°
19
70°
45°
20
68°
46°
21
67°
46°
22
67°
47°
23
63°
45°
24
62°
43°
25
63°
44°
26
63°
46°
27
64°
45°
28
64°
43°
29
63°
43°
30
64°
46°
31
66°
49°
1
67°
46°
2
65°
44°
3
67°
50°
4
71°
51°
5
66°
51°
6
69°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Farmington
Farmington's May 2026 forecast shows daily high temperatures ranging from 55° to 76°, with overnight lows between 35° and 53°. The average high for May is 64° with an average low of 45°. 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 Farmington. See also: June | July | August.