S
M
T
W
T
F
S
30
95°
70°
31
95°
70°
1
94°
69°
2
94°
68°
3
90°
65°
4
87°
66°
5
85°
66°
6
86°
67°
7
86°
66°
8
87°
65°
9
86°
67°
10
87°
67°
11
88°
66°
12
90°
65°
13
90°
66°
14
93°
65°
15
92°
67°
16
92°
67°
17
91°
65°
18
92°
64°
19
86°
58°
20
84°
64°
21
87°
62°
22
88°
62°
23
90°
60°
24
84°
56°
25
80°
58°
26
81°
56°
27
81°
53°
28
82°
54°
29
81°
57°
30
82°
55°
1
81°
58°
2
84°
58°
3
84°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in San Miguel
San Miguel's September 2026 forecast shows daily high temperatures ranging from 80° to 95°, with overnight lows between 53° and 70°. The average high for September is 87° with an average low of 63°. 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 San Miguel. See also: October | November | December.
