S
M
T
W
T
F
S
30
83°
58°
31
79°
63°
1
71°
62°
2
75°
62°
3
84°
63°
4
84°
68°
5
79°
59°
6
72°
56°
7
80°
51°
8
81°
55°
9
81°
61°
10
87°
70°
11
78°
56°
12
77°
51°
13
71°
64°
14
74°
53°
15
72°
48°
16
78°
54°
17
80°
66°
18
81°
64°
19
69°
56°
20
64°
55°
21
71°
51°
22
62°
48°
23
63°
46°
24
64°
48°
25
61°
50°
26
66°
52°
27
70°
48°
28
69°
50°
29
71°
48°
30
71°
51°
1
69°
49°
2
70°
46°
3
65°
50°
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 61° to 71°, with overnight lows between 46° and 55°. The average high for September is 67° with an average low of 49°. 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.
