S
M
T
W
T
F
S
30
82°
58°
31
83°
56°
1
86°
53°
2
82°
52°
3
79°
52°
4
80°
53°
5
81°
61°
6
86°
63°
7
88°
61°
8
90°
51°
9
82°
52°
10
79°
58°
11
82°
62°
12
87°
54°
13
87°
49°
14
78°
54°
15
80°
60°
16
86°
57°
17
87°
49°
18
78°
50°
19
76°
53°
20
84°
57°
21
83°
57°
22
84°
56°
23
83°
57°
24
83°
56°
25
82°
56°
26
82°
55°
27
81°
55°
28
83°
54°
29
82°
55°
30
82°
55°
1
81°
43°
2
81°
41°
3
69°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Phillipsburg
Phillipsburg's September 2026 forecast shows daily high temperatures ranging from 69° to 90°, with overnight lows between 41° and 63°. The average high for September is 82° with an average low of 54°. 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 Phillipsburg. See also: October | November | December.
