S
M
T
W
T
F
S
30
107°
80°
31
107°
80°
1
106°
79°
2
108°
81°
3
107°
79°
4
105°
79°
5
100°
78°
6
102°
79°
7
101°
78°
8
103°
77°
9
102°
78°
10
99°
78°
11
98°
77°
12
97°
76°
13
98°
77°
14
92°
73°
15
90°
75°
16
94°
74°
17
94°
74°
18
93°
74°
19
94°
75°
20
94°
74°
21
93°
75°
22
90°
74°
23
86°
73°
24
86°
73°
25
87°
74°
26
87°
73°
27
86°
72°
28
86°
72°
29
87°
70°
30
87°
68°
1
85°
69°
2
86°
71°
3
86°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Zapata
Zapata's September 2026 forecast shows daily high temperatures ranging from 85° to 108°, with overnight lows between 68° and 81°. The average high for September is 94° with an average low of 75°. 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 Zapata. See also: October | November | December.