S
M
T
W
T
F
S
30
76°
60°
31
77°
59°
1
71°
64°
2
70°
64°
3
83°
64°
4
83°
60°
5
76°
59°
6
73°
52°
7
80°
49°
8
79°
60°
9
77°
68°
10
82°
58°
11
73°
49°
12
77°
60°
13
79°
61°
14
78°
57°
15
76°
61°
16
75°
56°
17
71°
54°
18
69°
53°
19
68°
52°
20
70°
51°
21
71°
40°
22
67°
55°
23
68°
55°
24
70°
54°
25
71°
54°
26
74°
51°
27
66°
46°
28
70°
52°
29
73°
53°
30
74°
54°
1
74°
53°
2
72°
53°
3
71°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Latham
Latham's September 2026 forecast shows daily high temperatures ranging from 66° to 82°, with overnight lows between 40° and 68°. The average high for September is 73° with an average low of 54°. 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 Latham. See also: October | November | December.
