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September weather forecast in Allentown
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun
Sunday
Mon
Monday
Tue
Tuesday
Wed
Wednesday
Thu
Thursday
Fri
Friday
Sat
Saturday
1
+26
+21
1 September, sun
+26
+21
Feels like
+27
753 mmHg
63%
3.9
m/s
NW
1 September, Sunday. day, 26°; night, 21°; partly cloudy
2
+26
+20
2 September, mon
+26
+20
Feels like
+27
752 mmHg
67%
3.9
m/s
N
2 September, Monday. day, 26°; night, 20°; clear
3
+24
+20
3 September, tue
+24
+20
Feels like
+25
753 mmHg
68%
5
m/s
NW
3 September, Tuesday. day, 24°; night, 20°; clear
4
+25
+19
4 September, wed
+25
+19
Feels like
+26
753 mmHg
67%
4.1
m/s
W
4 September, Wednesday. day, 25°; night, 19°; clear
5
+23
+19
5 September, thu
+23
+19
Feels like
+24
755 mmHg
68%
4.6
m/s
NE
5 September, Thursday. day, 23°; night, 19°; rain
6
+24
+18
6 September, fri
+24
+18
Feels like
+24
753 mmHg
68%
5.4
m/s
NW
6 September, Friday. day, 24°; night, 18°; clear
7
+25
+19
7 September, sat
+25
+19
Feels like
+25
753 mmHg
64%
5
m/s
NW
7 September, Saturday. day, 25°; night, 19°; clear
8
+23
+19
8 September, sun
+23
+19
Feels like
+24
753 mmHg
70%
4.5
m/s
NW
8 September, Sunday. day, 23°; night, 19°; partly cloudy
9
+23
+19
9 September, mon
+23
+19
Feels like
+23
754 mmHg
74%
4.9
m/s
N
9 September, Monday. day, 23°; night, 19°; clear
10
+23
+18
10 September, tue
+23
+18
Feels like
+23
754 mmHg
69%
5.5
m/s
N
10 September, Tuesday. day, 23°; night, 18°; partly cloudy
11
+22
+18
11 September, wed
+22
+18
Feels like
+22
754 mmHg
73%
4.1
m/s
N
11 September, Wednesday. day, 22°; night, 18°; clear
12
+22
+17
12 September, thu
+22
+17
Feels like
+22
753 mmHg
69%
4
m/s
NW
12 September, Thursday. day, 22°; night, 17°; clear
13
+23
+17
13 September, fri
+23
+17
Feels like
+22
754 mmHg
64%
4.9
m/s
W
13 September, Friday. day, 23°; night, 17°; clear
14
+23
+18
14 September, sat
+23
+18
Feels like
+23
755 mmHg
63%
4.5
m/s
NW
14 September, Saturday. day, 23°; night, 18°; clear
15
+21
+18
15 September, sun
+21
+18
Feels like
+20
756 mmHg
64%
5
m/s
N
15 September, Sunday. day, 21°; night, 18°; rain
16
+20
+16
16 September, mon
+20
+16
Feels like
+19
757 mmHg
62%
4.4
m/s
NE
16 September, Monday. day, 20°; night, 16°; clear
17
+21
+15
17 September, tue
+21
+15
Feels like
+20
756 mmHg
63%
3.9
m/s
NW
17 September, Tuesday. day, 21°; night, 15°; clear
18
+22
+17
18 September, wed
+22
+17
Feels like
+21
755 mmHg
67%
4
m/s
NE
18 September, Wednesday. day, 22°; night, 17°; clear
19
+21
+16
19 September, thu
+21
+16
Feels like
+20
756 mmHg
67%
5.1
m/s
N
19 September, Thursday. day, 21°; night, 16°; clear
20
+22
+16
20 September, fri
+22
+16
Feels like
+22
755 mmHg
68%
3.9
m/s
SE
20 September, Friday. day, 22°; night, 16°; clear
21
+23
+18
21 September, sat
+23
+18
Feels like
+22
755 mmHg
67%
4.3
m/s
NW
21 September, Saturday. day, 23°; night, 18°; partly cloudy
22
+23
+17
22 September, sun
+23
+17
Feels like
+23
756 mmHg
67%
4.6
m/s
N
22 September, Sunday. day, 23°; night, 17°; clear
23
+24
+17
23 September, mon
+24
+17
Feels like
+24
757 mmHg
62%
4
m/s
N
23 September, Monday. day, 24°; night, 17°; clear
24
+21
+18
24 September, tue
+21
+18
Feels like
+20
756 mmHg
64%
4.6
m/s
NE
24 September, Tuesday. day, 21°; night, 18°; partly cloudy
25
+21
+15
25 September, wed
+21
+15
Feels like
+20
757 mmHg
66%
4.6
m/s
NE
25 September, Wednesday. day, 21°; night, 15°; clear
26
+21
+16
26 September, thu
+21
+16
Feels like
+21
754 mmHg
79%
5.5
m/s
E
26 September, Thursday. day, 21°; night, 16°; rain
27
+22
+18
27 September, fri
+22
+18
Feels like
+22
752 mmHg
73%
4.9
m/s
SE
27 September, Friday. day, 22°; night, 18°; rain
28
+20
+18
28 September, sat
+20
+18
Feels like
+20
751 mmHg
75%
4.8
m/s
W
28 September, Saturday. day, 20°; night, 18°; rain
29
+19
+16
29 September, sun
+19
+16
Feels like
+17
751 mmHg
76%
6.5
m/s
N
29 September, Sunday. day, 19°; night, 16°; overcast
30
+17
+13
30 September, mon
+17
+13
Feels like
+16
753 mmHg
74%
5.6
m/s
N
30 September, Monday. day, 17°; night, 13°; rain
1
+17
+13
1 October, tue
+17
+13
Feels like
+15
753 mmHg
75%
5
m/s
N
1 October, Tuesday. day, 17°; night, 13°; partly cloudy
2
+16
+13
2 October, wed
+16
+13
Feels like
+14
755 mmHg
77%
5
m/s
E
2 October, Wednesday. day, 16°; night, 13°; rain
3
+18
+13
3 October, thu
+18
+13
Feels like
+17
754 mmHg
75%
5.3
m/s
NW
3 October, Thursday. day, 18°; night, 13°; clear
4
+18
+13
4 October, fri
+18
+13
Feels like
+17
755 mmHg
74%
4.8
m/s
NW
4 October, Friday. day, 18°; night, 13°; clear
5
+19
+14
5 October, sat
+19
+14
Feels like
+18
755 mmHg
69%
4.4
m/s
NW
5 October, Saturday. day, 19°; night, 14°; partly cloudy
Average data for 10 years
Allentown September
18
sunny days
6
days with precipitation
6
cloudy days
18 sunny days; 6 days with precipitation; 6 cloudy days;
68
%
air humidity
3.4
m/s
Wind
N
83
mm of precipitation
(10% of annual average)
air humidity 68%; 83 millimeters of precipitation (10% of annual average); Wind northerly 3.4 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
NW
N
NW
W
NE
NW
NW
NW
N
N
N
NW
W
NW
N
NE
NW
NE
N
SE
NW
N
N
NE
NE
E
SE
W
N
N
1
Average data for 10 years
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Daytime temperature
Night-time temperature
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