S
M
T
W
T
F
S
30
93°
71°
31
95°
70°
1
97°
69°
2
98°
70°
3
99°
71°
4
100°
72°
5
97°
72°
6
95°
69°
7
91°
73°
8
90°
73°
9
93°
69°
10
96°
68°
11
91°
66°
12
94°
68°
13
96°
70°
14
97°
70°
15
95°
68°
16
95°
69°
17
93°
67°
18
82°
59°
19
77°
63°
20
78°
63°
21
87°
63°
22
84°
62°
23
84°
63°
24
85°
63°
25
85°
62°
26
84°
62°
27
83°
61°
28
83°
62°
29
84°
62°
30
84°
61°
1
83°
58°
2
81°
52°
3
71°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Loretto
Loretto's September 2026 forecast shows daily high temperatures ranging from 71° to 97°, with overnight lows between 49° and 73°. The average high for September is 88° with an average low of 64°. 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 Loretto. See also: October | November | December.