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September weather forecast in Washington
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
+29
+23
1 September, sun
+29
+23
Feels like
+29
747 mmHg
54%
5
m/s
N
1 September, Sunday. day, 29°; night, 23°; clear
2
+27
+23
2 September, mon
+27
+23
Feels like
+27
747 mmHg
54%
4.9
m/s
N
2 September, Monday. day, 27°; night, 23°; clear
3
+28
+23
3 September, tue
+28
+23
Feels like
+28
747 mmHg
55%
4.5
m/s
N
3 September, Tuesday. day, 28°; night, 23°; clear
4
+27
+22
4 September, wed
+27
+22
Feels like
+26
747 mmHg
50%
5.5
m/s
N
4 September, Wednesday. day, 27°; night, 22°; partly cloudy
5
+25
+21
5 September, thu
+25
+21
Feels like
+24
748 mmHg
55%
5
m/s
NE
5 September, Thursday. day, 25°; night, 21°; clear
6
+27
+20
6 September, fri
+27
+20
Feels like
+27
748 mmHg
52%
5
m/s
NW
6 September, Friday. day, 27°; night, 20°; clear
7
+27
+21
7 September, sat
+27
+21
Feels like
+27
748 mmHg
50%
4.3
m/s
NW
7 September, Saturday. day, 27°; night, 21°; clear
8
+26
+21
8 September, sun
+26
+21
Feels like
+26
747 mmHg
58%
4.5
m/s
NE
8 September, Sunday. day, 26°; night, 21°; clear
9
+25
+20
9 September, mon
+25
+20
Feels like
+25
747 mmHg
64%
4.6
m/s
NE
9 September, Monday. day, 25°; night, 20°; clear
10
+24
+20
10 September, tue
+24
+20
Feels like
+24
748 mmHg
64%
5.1
m/s
N
10 September, Tuesday. day, 24°; night, 20°; partly cloudy
11
+24
+19
11 September, wed
+24
+19
Feels like
+23
749 mmHg
56%
5.9
m/s
N
11 September, Wednesday. day, 24°; night, 19°; partly cloudy
12
+24
+19
12 September, thu
+24
+19
Feels like
+23
748 mmHg
55%
4.9
m/s
NW
12 September, Thursday. day, 24°; night, 19°; clear
13
+25
+18
13 September, fri
+25
+18
Feels like
+24
749 mmHg
51%
4.6
m/s
SE
13 September, Friday. day, 25°; night, 18°; clear
14
+25
+19
14 September, sat
+25
+19
Feels like
+23
749 mmHg
51%
5
m/s
E
14 September, Saturday. day, 25°; night, 19°; partly cloudy
15
+23
+19
15 September, sun
+23
+19
Feels like
+22
750 mmHg
56%
5
m/s
NE
15 September, Sunday. day, 23°; night, 19°; clear
16
+24
+18
16 September, mon
+24
+18
Feels like
+23
750 mmHg
52%
4.9
m/s
NE
16 September, Monday. day, 24°; night, 18°; partly cloudy
17
+25
+19
17 September, tue
+25
+19
Feels like
+26
748 mmHg
62%
4.3
m/s
E
17 September, Tuesday. day, 25°; night, 19°; partly cloudy
18
+24
+20
18 September, wed
+24
+20
Feels like
+24
748 mmHg
62%
5
m/s
N
18 September, Wednesday. day, 24°; night, 20°; partly cloudy
19
+25
+20
19 September, thu
+25
+20
Feels like
+26
748 mmHg
61%
4.5
m/s
E
19 September, Thursday. day, 25°; night, 20°; rain
20
+26
+21
20 September, fri
+26
+21
Feels like
+25
747 mmHg
52%
4.6
m/s
W
20 September, Friday. day, 26°; night, 21°; clear
21
+25
+20
21 September, sat
+25
+20
Feels like
+24
749 mmHg
50%
4.6
m/s
NE
21 September, Saturday. day, 25°; night, 20°; clear
22
+25
+19
22 September, sun
+25
+19
Feels like
+24
750 mmHg
50%
4.9
m/s
NE
22 September, Sunday. day, 25°; night, 19°; rain
23
+24
+20
23 September, mon
+24
+20
Feels like
+23
750 mmHg
54%
4.6
m/s
NE
23 September, Monday. day, 24°; night, 20°; partly cloudy
24
+24
+20
24 September, tue
+24
+20
Feels like
+23
749 mmHg
51%
4.6
m/s
NE
24 September, Tuesday. day, 24°; night, 20°; clear
25
+24
+19
25 September, wed
+24
+19
Feels like
+23
748 mmHg
56%
4.4
m/s
NE
25 September, Wednesday. day, 24°; night, 19°; clear
26
+23
+19
26 September, thu
+23
+19
Feels like
+21
747 mmHg
58%
5
m/s
N
26 September, Thursday. day, 23°; night, 19°; clear
27
+23
+18
27 September, fri
+23
+18
Feels like
+22
746 mmHg
54%
5.1
m/s
NW
27 September, Friday. day, 23°; night, 18°; clear
28
+22
+18
28 September, sat
+22
+18
Feels like
+21
746 mmHg
55%
4.9
m/s
NW
28 September, Saturday. day, 22°; night, 18°; clear
29
+21
+17
29 September, sun
+21
+17
Feels like
+19
747 mmHg
60%
5.5
m/s
N
29 September, Sunday. day, 21°; night, 17°; rain
30
+20
+15
30 September, mon
+20
+15
Feels like
+18
748 mmHg
62%
6.6
m/s
N
30 September, Monday. day, 20°; night, 15°; clear
1
+19
+15
1 October, tue
+19
+15
Feels like
+16
747 mmHg
62%
6.1
m/s
N
1 October, Tuesday. day, 19°; night, 15°; partly cloudy
2
+19
+15
2 October, wed
+19
+15
Feels like
+16
747 mmHg
64%
5.8
m/s
NW
2 October, Wednesday. day, 19°; night, 15°; partly cloudy
3
+20
+14
3 October, thu
+20
+14
Feels like
+18
749 mmHg
60%
5
m/s
NW
3 October, Thursday. day, 20°; night, 14°; clear
4
+22
+15
4 October, fri
+22
+15
Feels like
+20
749 mmHg
58%
4.5
m/s
E
4 October, Friday. day, 22°; night, 15°; clear
5
+22
+17
5 October, sat
+22
+17
Feels like
+20
747 mmHg
58%
6.4
m/s
SW
5 October, Saturday. day, 22°; night, 17°; rain
Average data for 10 years
Washington September
19
sunny days
3
days with precipitation
8
cloudy days
19 sunny days; 3 days with precipitation; 8 cloudy days;
56
%
air humidity
3.7
m/s
Wind
N
49
mm of precipitation
(6% of annual average)
air humidity 56%; 49 millimeters of precipitation (6% of annual average); Wind northerly 3.7 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
N
N
N
N
NE
NW
NW
NE
NE
N
N
NW
SE
E
NE
NE
E
N
E
W
NE
NE
NE
NE
NE
N
NW
NW
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
Cities near you
Chicago
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Louisville
Lexington
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