S
M
T
W
T
F
S
30
62°
51°
31
63°
48°
1
62°
49°
2
63°
50°
3
59°
53°
4
59°
52°
5
60°
53°
6
61°
54°
7
62°
54°
8
63°
53°
9
63°
53°
10
62°
48°
11
63°
45°
12
60°
46°
13
58°
45°
14
59°
46°
15
55°
46°
16
56°
44°
17
55°
43°
18
55°
47°
19
57°
43°
20
56°
42°
21
54°
46°
22
55°
45°
23
55°
42°
24
56°
42°
25
52°
43°
26
52°
42°
27
53°
42°
28
52°
45°
29
53°
46°
30
56°
47°
1
58°
47°
2
58°
48°
3
57°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Tompkins
Tompkins's September 2026 forecast shows daily high temperatures ranging from 52° to 63°, with overnight lows between 42° and 54°. The average high for September is 58° 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 Tompkins. See also: October | November | December.
