S
M
T
W
T
F
S
30
Hist. Avg.
67°
45°
31
Hist. Avg.
66°
45°
1
Hist. Avg.
66°
45°
2
Hist. Avg.
66°
45°
3
Hist. Avg.
66°
44°
4
Hist. Avg.
65°
44°
5
Hist. Avg.
65°
44°
6
Hist. Avg.
65°
44°
7
Hist. Avg.
64°
43°
8
Hist. Avg.
64°
43°
9
Hist. Avg.
64°
43°
10
Hist. Avg.
63°
43°
11
Hist. Avg.
63°
42°
12
Hist. Avg.
63°
42°
13
Hist. Avg.
62°
42°
14
Hist. Avg.
62°
42°
15
Hist. Avg.
62°
41°
16
Hist. Avg.
62°
41°
17
Hist. Avg.
61°
41°
18
Hist. Avg.
61°
41°
19
Hist. Avg.
60°
40°
20
Hist. Avg.
60°
40°
21
Hist. Avg.
60°
40°
22
Hist. Avg.
59°
40°
23
Hist. Avg.
59°
39°
24
Hist. Avg.
58°
39°
25
Hist. Avg.
58°
39°
26
Hist. Avg.
58°
38°
27
Hist. Avg.
57°
38°
28
Hist. Avg.
57°
38°
29
Hist. Avg.
56°
38°
30
Hist. Avg.
56°
37°
1
Hist. Avg.
56°
37°
2
Hist. Avg.
55°
37°
3
Hist. Avg.
55°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Northern
Northern's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Northern. See also: October | November | December.