S
M
T
W
T
F
S
30
81°
50°
31
75°
47°
1
73°
47°
2
72°
48°
3
73°
46°
4
72°
47°
5
72°
47°
6
71°
48°
7
73°
52°
8
75°
52°
9
71°
47°
10
71°
47°
11
72°
48°
12
71°
45°
13
72°
49°
14
71°
50°
15
69°
46°
16
70°
44°
17
67°
43°
18
68°
44°
19
67°
51°
20
68°
52°
21
Hist. Avg.
71°
51°
22
Hist. Avg.
71°
50°
23
Hist. Avg.
70°
50°
24
Hist. Avg.
70°
50°
25
Hist. Avg.
69°
50°
26
Hist. Avg.
69°
49°
27
Hist. Avg.
68°
49°
28
Hist. Avg.
68°
48°
29
Hist. Avg.
67°
48°
30
Hist. Avg.
67°
48°
1
Hist. Avg.
66°
47°
2
Hist. Avg.
66°
47°
3
Hist. Avg.
66°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Amboy
Amboy's September 2026 forecast shows daily high temperatures ranging from 67° to 81°, with overnight lows between 43° and 52°. The average high for September is 72° 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 Amboy. See also: October | November | December.
