S
M
T
W
T
F
S
30
94°
68°
31
94°
68°
1
93°
67°
2
94°
67°
3
93°
63°
4
94°
60°
5
87°
61°
6
88°
66°
7
92°
66°
8
93°
67°
9
93°
67°
10
91°
68°
11
91°
66°
12
90°
65°
13
90°
64°
14
91°
65°
15
92°
66°
16
91°
66°
17
Hist. Avg.
86°
62°
18
Hist. Avg.
86°
61°
19
Hist. Avg.
86°
61°
20
Hist. Avg.
85°
60°
21
Hist. Avg.
85°
60°
22
Hist. Avg.
85°
60°
23
Hist. Avg.
84°
59°
24
Hist. Avg.
84°
59°
25
Hist. Avg.
84°
59°
26
Hist. Avg.
83°
58°
27
Hist. Avg.
83°
58°
28
Hist. Avg.
83°
57°
29
Hist. Avg.
82°
57°
30
Hist. Avg.
82°
56°
1
Hist. Avg.
82°
56°
2
Hist. Avg.
81°
56°
3
Hist. Avg.
81°
55°
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 87° to 94°, with overnight lows between 60° and 68°. The average high for September is 92° with an average low of 66°. 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.
