S
M
T
W
T
F
S
30
93°
72°
31
96°
73°
1
95°
71°
2
96°
70°
3
94°
73°
4
92°
71°
5
92°
70°
6
94°
69°
7
91°
69°
8
90°
66°
9
92°
67°
10
91°
66°
11
90°
64°
12
88°
61°
13
87°
62°
14
83°
61°
15
84°
65°
16
79°
64°
17
81°
63°
18
83°
64°
19
84°
63°
20
79°
63°
21
79°
62°
22
82°
62°
23
82°
61°
24
84°
61°
25
85°
62°
26
83°
61°
27
84°
62°
28
84°
61°
29
83°
60°
30
84°
60°
1
83°
59°
2
81°
59°
3
82°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lehigh
Lehigh's September 2026 forecast shows daily high temperatures ranging from 79° to 96°, with overnight lows between 58° and 73°. The average high for September is 86° with an average low of 64°. 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 Lehigh. See also: October | November | December.
