S
M
T
W
T
F
S
30
98°
75°
31
98°
74°
1
99°
76°
2
99°
72°
3
97°
72°
4
97°
73°
5
98°
72°
6
97°
72°
7
98°
73°
8
100°
71°
9
99°
71°
10
99°
72°
11
100°
74°
12
100°
75°
13
99°
72°
14
100°
70°
15
97°
72°
16
96°
73°
17
95°
70°
18
94°
70°
19
94°
69°
20
93°
67°
21
91°
68°
22
93°
69°
23
93°
68°
24
94°
70°
25
95°
68°
26
95°
67°
27
94°
67°
28
93°
64°
29
91°
64°
30
91°
66°
1
92°
69°
2
96°
70°
3
97°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Guadalupe
Guadalupe's September 2026 forecast shows daily high temperatures ranging from 91° to 100°, with overnight lows between 64° and 76°. The average high for September is 96° with an average low of 70°. 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 Guadalupe. See also: October | November | December.
