S
M
T
W
T
F
S
30
73°
59°
31
72°
55°
1
70°
54°
2
68°
59°
3
77°
64°
4
68°
55°
5
72°
52°
6
79°
55°
7
73°
61°
8
N/A
9
66°
48°
10
65°
56°
11
71°
46°
12
70°
58°
13
71°
54°
14
74°
59°
15
72°
52°
16
67°
50°
17
68°
52°
18
69°
52°
19
69°
51°
20
68°
50°
21
67°
52°
22
67°
51°
23
66°
52°
24
67°
51°
25
66°
48°
26
64°
48°
27
64°
47°
28
63°
48°
29
63°
48°
30
65°
49°
1
64°
44°
2
63°
49°
3
64°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Old Basing
Old Basing's September 2026 forecast shows daily high temperatures ranging from 63° to 74°, with overnight lows between 44° and 59°. The average high for September is 67° with an average low of 51°. 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 Old Basing. See also: October | November | December.
