S
M
T
W
T
F
S
30
71°
55°
31
72°
54°
1
73°
56°
2
73°
58°
3
72°
59°
4
73°
60°
5
74°
60°
6
71°
59°
7
68°
58°
8
70°
57°
9
68°
55°
10
69°
53°
11
68°
55°
12
68°
54°
13
69°
51°
14
67°
53°
15
67°
54°
16
68°
53°
17
70°
52°
18
71°
51°
19
68°
53°
20
68°
56°
21
72°
57°
22
73°
58°
23
68°
57°
24
67°
56°
25
Hist. Avg.
75°
54°
26
Hist. Avg.
75°
54°
27
Hist. Avg.
75°
54°
28
Hist. Avg.
75°
54°
29
Hist. Avg.
75°
54°
30
Hist. Avg.
75°
53°
1
Hist. Avg.
75°
53°
2
Hist. Avg.
75°
53°
3
Hist. Avg.
75°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Vandenberg Space Force Base
Vandenberg Space Force Base's September 2026 forecast shows daily high temperatures ranging from 67° to 74°, with overnight lows between 51° and 60°. The average high for September is 70° with an average low of 56°. 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 Vandenberg Space Force Base. See also: October | November | December.