S
M
T
W
T
F
S
30
89°
74°
31
88°
75°
1
87°
75°
2
88°
74°
3
87°
75°
4
88°
74°
5
87°
72°
6
87°
74°
7
88°
74°
8
88°
73°
9
87°
74°
10
88°
74°
11
88°
73°
12
87°
74°
13
88°
74°
14
88°
73°
15
87°
75°
16
86°
74°
17
87°
74°
18
86°
73°
19
87°
74°
20
88°
73°
21
87°
74°
22
87°
74°
23
86°
73°
24
87°
74°
25
87°
73°
26
86°
73°
27
86°
72°
28
87°
74°
29
86°
74°
30
87°
73°
1
86°
74°
2
87°
73°
3
86°
72°
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 86° to 89°, with overnight lows between 72° and 75°. The average high for September is 87° with an average low of 74°. 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.
