S
M
T
W
T
F
S
30
98°
72°
31
N/A
1
89°
75°
2
90°
75°
3
93°
74°
4
94°
73°
5
95°
74°
6
94°
72°
7
94°
72°
8
93°
74°
9
93°
75°
10
94°
74°
11
94°
73°
12
91°
74°
13
93°
74°
14
92°
73°
15
90°
73°
16
93°
72°
17
93°
73°
18
92°
73°
19
91°
72°
20
92°
73°
21
87°
72°
22
84°
72°
23
85°
71°
24
85°
71°
25
87°
70°
26
88°
69°
27
91°
70°
28
91°
70°
29
90°
69°
30
90°
69°
1
89°
70°
2
87°
69°
3
88°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Northampton Forest
Northampton Forest's September 2026 forecast shows daily high temperatures ranging from 84° to 95°, with overnight lows between 69° and 75°. The average high for September is 91° with an average low of 72°. 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 Northampton Forest. See also: October | November | December.
