S
M
T
W
T
F
S
30
77°
58°
31
79°
58°
1
78°
50°
2
76°
51°
3
69°
56°
4
74°
57°
5
75°
57°
6
76°
50°
7
73°
48°
8
70°
49°
9
72°
56°
10
69°
56°
11
74°
54°
12
68°
51°
13
66°
53°
14
64°
53°
15
64°
47°
16
65°
46°
17
65°
52°
18
66°
47°
19
63°
50°
20
65°
54°
21
68°
51°
22
69°
45°
23
65°
45°
24
63°
51°
25
63°
47°
26
62°
47°
27
65°
50°
28
Hist. Avg.
62°
40°
29
Hist. Avg.
62°
40°
30
Hist. Avg.
62°
39°
1
Hist. Avg.
61°
39°
2
Hist. Avg.
61°
39°
3
Hist. Avg.
60°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Northfield
Northfield's September 2026 forecast shows daily high temperatures ranging from 62° to 79°, with overnight lows between 45° and 58°. The average high for September is 69° with an average low of 51°. 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.
