S
M
T
W
T
F
S
30
89°
64°
31
69°
59°
1
84°
53°
2
88°
55°
3
87°
55°
4
89°
61°
5
88°
57°
6
91°
55°
7
85°
64°
8
92°
60°
9
93°
56°
10
90°
50°
11
90°
54°
12
89°
58°
13
91°
60°
14
85°
61°
15
84°
58°
16
76°
60°
17
72°
58°
18
79°
55°
19
80°
52°
20
78°
48°
21
79°
53°
22
78°
52°
23
77°
54°
24
78°
55°
25
78°
54°
26
77°
53°
27
78°
52°
28
78°
50°
29
73°
41°
30
72°
47°
1
75°
49°
2
69°
46°
3
69°
48°
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 69° to 80°, with overnight lows between 41° and 60°. The average high for September is 76° 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 September weather will actually feel in Farmington. See also: October | November | December.
