S
M
T
W
T
F
S
30
88°
48°
31
89°
55°
1
94°
55°
2
93°
54°
3
93°
53°
4
91°
49°
5
89°
47°
6
83°
51°
7
87°
50°
8
88°
41°
9
81°
48°
10
82°
53°
11
86°
44°
12
82°
41°
13
81°
40°
14
79°
41°
15
81°
40°
16
82°
43°
17
87°
45°
18
89°
47°
19
90°
45°
20
89°
50°
21
89°
47°
22
88°
51°
23
90°
51°
24
89°
50°
25
87°
47°
26
85°
42°
27
75°
43°
28
78°
46°
29
80°
43°
30
72°
45°
1
75°
44°
2
79°
46°
3
75°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Hammett
Hammett's September 2026 forecast shows daily high temperatures ranging from 72° to 94°, with overnight lows between 37° and 55°. The average high for September is 85° with an average low of 47°. 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 Hammett. See also: October | November | December.
