S
M
T
W
T
F
S
30
75°
56°
31
73°
56°
1
68°
63°
2
67°
60°
3
78°
61°
4
78°
59°
5
72°
58°
6
70°
53°
7
75°
49°
8
71°
53°
9
68°
61°
10
73°
47°
11
66°
40°
12
71°
54°
13
72°
56°
14
69°
51°
15
69°
57°
16
68°
50°
17
67°
49°
18
61°
46°
19
60°
42°
20
64°
45°
21
63°
44°
22
59°
48°
23
61°
48°
24
62°
47°
25
64°
48°
26
66°
44°
27
59°
40°
28
62°
46°
29
66°
47°
30
67°
47°
1
67°
46°
2
65°
47°
3
64°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Speculator
Speculator's September 2026 forecast shows daily high temperatures ranging from 59° to 73°, with overnight lows between 40° and 61°. The average high for September is 66° with an average low of 48°. 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 Speculator. See also: October | November | December.
