S
M
T
W
T
F
S
30
85°
57°
31
79°
57°
1
78°
56°
2
78°
57°
3
79°
62°
4
78°
56°
5
82°
56°
6
78°
55°
7
77°
54°
8
78°
55°
9
78°
56°
10
81°
61°
11
82°
60°
12
76°
58°
13
75°
59°
14
81°
59°
15
Hist. Avg.
75°
50°
16
Hist. Avg.
74°
49°
17
Hist. Avg.
74°
49°
18
Hist. Avg.
74°
49°
19
Hist. Avg.
73°
48°
20
Hist. Avg.
73°
48°
21
Hist. Avg.
73°
48°
22
Hist. Avg.
72°
47°
23
Hist. Avg.
72°
47°
24
Hist. Avg.
72°
46°
25
Hist. Avg.
71°
46°
26
Hist. Avg.
71°
46°
27
Hist. Avg.
70°
45°
28
Hist. Avg.
70°
45°
29
Hist. Avg.
70°
45°
30
Hist. Avg.
69°
44°
1
Hist. Avg.
69°
44°
2
Hist. Avg.
68°
44°
3
Hist. Avg.
68°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Phillipsburg
Phillipsburg's September 2026 forecast shows daily high temperatures ranging from 75° to 85°, with overnight lows between 54° and 62°. The average high for September is 79° with an average low of 57°. 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.
