S
M
T
W
T
F
S
30
88°
80°
31
94°
79°
1
91°
75°
2
90°
79°
3
90°
80°
4
91°
78°
5
90°
79°
6
90°
78°
7
88°
78°
8
90°
79°
9
90°
79°
10
91°
80°
11
90°
81°
12
89°
81°
13
88°
79°
14
87°
76°
15
91°
78°
16
91°
78°
17
91°
77°
18
92°
77°
19
90°
77°
20
89°
76°
21
89°
77°
22
87°
76°
23
88°
77°
24
87°
74°
25
86°
75°
26
87°
76°
27
85°
74°
28
85°
75°
29
84°
75°
30
85°
74°
1
85°
75°
2
86°
75°
3
85°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Vega Alta
Vega Alta's September 2026 forecast shows daily high temperatures ranging from 84° to 92°, with overnight lows between 74° and 78°. The average high for September is 88° with an average low of 76°. 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 Vega Alta. See also: October | November | December.
