S
M
T
W
T
F
S
30
74°
57°
31
76°
58°
1
72°
53°
2
78°
60°
3
81°
57°
4
82°
54°
5
76°
49°
6
75°
49°
7
75°
56°
8
78°
54°
9
78°
47°
10
70°
46°
11
69°
44°
12
68°
46°
13
70°
51°
14
69°
44°
15
68°
42°
16
65°
42°
17
66°
43°
18
66°
42°
19
67°
42°
20
66°
43°
21
66°
46°
22
70°
51°
23
71°
43°
24
74°
51°
25
72°
49°
26
72°
40°
27
64°
48°
28
64°
49°
29
66°
46°
30
66°
45°
1
64°
42°
2
60°
40°
3
62°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Northfield
Northfield's September 2026 forecast shows daily high temperatures ranging from 60° to 82°, with overnight lows between 40° and 60°. The average high for September is 70° 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 Northfield. See also: October | November | December.
