S
M
T
W
T
F
S
30
78°
60°
31
80°
62°
1
81°
55°
2
82°
52°
3
77°
51°
4
75°
52°
5
76°
53°
6
78°
57°
7
85°
61°
8
85°
61°
9
84°
54°
10
77°
54°
11
78°
60°
12
78°
56°
13
83°
51°
14
75°
49°
15
74°
50°
16
75°
55°
17
78°
57°
18
82°
47°
19
74°
57°
20
77°
53°
21
78°
56°
22
77°
57°
23
81°
57°
24
79°
56°
25
80°
57°
26
80°
56°
27
79°
56°
28
80°
55°
29
79°
55°
30
79°
54°
1
80°
50°
2
79°
44°
3
77°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Farmington
Farmington's September 2026 forecast shows daily high temperatures ranging from 74° to 85°, with overnight lows between 44° and 62°. The average high for September is 79° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Farmington. See also: October | November | December.
