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September weather forecast in Federal Way
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
31
+21
+16
31 August, sun
+21
+16
Feels like
+21
758 mmHg
66%
2.7
m/s
SW
31 August, Sunday. day, 21°; night, 16°; clear
1
+22
+16
1 September, mon
+22
+16
Feels like
+21
759 mmHg
61%
3.4
m/s
W
1 September, Monday. day, 22°; night, 16°; clear
2
+22
+17
2 September, tue
+22
+17
Feels like
+22
759 mmHg
62%
3.2
m/s
NW
2 September, Tuesday. day, 22°; night, 17°; partly cloudy
3
+22
+17
3 September, wed
+22
+17
Feels like
+22
759 mmHg
58%
3
m/s
N
3 September, Wednesday. day, 22°; night, 17°; clear
4
+22
+17
4 September, thu
+22
+17
Feels like
+21
759 mmHg
60%
3.5
m/s
N
4 September, Thursday. day, 22°; night, 17°; partly cloudy
5
+21
+17
5 September, fri
+21
+17
Feels like
+21
759 mmHg
64%
2.9
m/s
S
5 September, Friday. day, 21°; night, 17°; partly cloudy
6
+22
+17
6 September, sat
+22
+17
Feels like
+22
758 mmHg
63%
3.2
m/s
N
6 September, Saturday. day, 22°; night, 17°; clear
7
+23
+18
7 September, sun
+23
+18
Feels like
+23
759 mmHg
61%
2.5
m/s
NW
7 September, Sunday. day, 23°; night, 18°; partly cloudy
8
+22
+17
8 September, mon
+22
+17
Feels like
+22
759 mmHg
61%
3.2
m/s
W
8 September, Monday. day, 22°; night, 17°; clear
9
+22
+17
9 September, tue
+22
+17
Feels like
+22
760 mmHg
62%
3.5
m/s
N
9 September, Tuesday. day, 22°; night, 17°; clear
10
+25
+18
10 September, wed
+25
+18
Feels like
+25
759 mmHg
50%
3
m/s
NE
10 September, Wednesday. day, 25°; night, 18°; clear
11
+23
+17
11 September, thu
+23
+17
Feels like
+22
759 mmHg
54%
3.2
m/s
N
11 September, Thursday. day, 23°; night, 17°; clear
12
+22
+16
12 September, fri
+22
+16
Feels like
+21
758 mmHg
56%
3.4
m/s
N
12 September, Friday. day, 22°; night, 16°; rain
13
+22
+17
13 September, sat
+22
+17
Feels like
+22
757 mmHg
54%
3.2
m/s
N
13 September, Saturday. day, 22°; night, 17°; clear
14
+23
+17
14 September, sun
+23
+17
Feels like
+22
757 mmHg
54%
2.7
m/s
W
14 September, Sunday. day, 23°; night, 17°; partly cloudy
15
+21
+16
15 September, mon
+21
+16
Feels like
+21
758 mmHg
60%
2.9
m/s
NW
15 September, Monday. day, 21°; night, 16°; clear
16
+20
+15
16 September, tue
+20
+15
Feels like
+20
757 mmHg
66%
2.9
m/s
E
16 September, Tuesday. day, 20°; night, 15°; overcast
17
+20
+16
17 September, wed
+20
+16
Feels like
+20
757 mmHg
68%
3
m/s
SW
17 September, Wednesday. day, 20°; night, 16°; partly cloudy
18
+20
+15
18 September, thu
+20
+15
Feels like
+20
757 mmHg
68%
3.4
m/s
SW
18 September, Thursday. day, 20°; night, 15°; clear
19
+20
+15
19 September, fri
+20
+15
Feels like
+19
757 mmHg
66%
3.5
m/s
SW
19 September, Friday. day, 20°; night, 15°; clear
20
+20
+14
20 September, sat
+20
+14
Feels like
+19
758 mmHg
62%
3.2
m/s
NW
20 September, Saturday. day, 20°; night, 14°; clear
21
+20
+15
21 September, sun
+20
+15
Feels like
+19
757 mmHg
63%
3
m/s
S
21 September, Sunday. day, 20°; night, 15°; partly cloudy
22
+19
+15
22 September, mon
+19
+15
Feels like
+18
758 mmHg
68%
2.7
m/s
S
22 September, Monday. day, 19°; night, 15°; partly cloudy
23
+19
+15
23 September, tue
+19
+15
Feels like
+19
759 mmHg
68%
2.9
m/s
E
23 September, Tuesday. day, 19°; night, 15°; clear
24
+18
+15
24 September, wed
+18
+15
Feels like
+18
759 mmHg
68%
2.9
m/s
E
24 September, Wednesday. day, 18°; night, 15°; clear
25
+18
+15
25 September, thu
+18
+15
Feels like
+18
760 mmHg
74%
3.2
m/s
E
25 September, Thursday. day, 18°; night, 15°; rain
26
+20
+15
26 September, fri
+20
+15
Feels like
+19
760 mmHg
68%
3.2
m/s
N
26 September, Friday. day, 20°; night, 15°; partly cloudy
27
+19
+14
27 September, sat
+19
+14
Feels like
+18
758 mmHg
66%
4.1
m/s
NE
27 September, Saturday. day, 19°; night, 14°; clear
28
+19
+14
28 September, sun
+19
+14
Feels like
+17
756 mmHg
63%
4
m/s
E
28 September, Sunday. day, 19°; night, 14°; rain
29
+18
+14
29 September, mon
+18
+14
Feels like
+16
758 mmHg
67%
3.5
m/s
NE
29 September, Monday. day, 18°; night, 14°; clear
30
+17
+14
30 September, tue
+17
+14
Feels like
+16
760 mmHg
68%
3.2
m/s
SW
30 September, Tuesday. day, 17°; night, 14°; clear
1
+17
+13
1 October, wed
+17
+13
Feels like
+16
760 mmHg
69%
3.2
m/s
N
1 October, Wednesday. day, 17°; night, 13°; partly cloudy
2
+16
+12
2 October, thu
+16
+12
Feels like
+15
759 mmHg
68%
3.2
m/s
NE
2 October, Thursday. day, 16°; night, 12°; clear
3
+17
+13
3 October, fri
+17
+13
Feels like
+15
759 mmHg
62%
3.5
m/s
N
3 October, Friday. day, 17°; night, 13°; partly cloudy
4
+18
+13
4 October, sat
+18
+13
Feels like
+16
758 mmHg
62%
3.7
m/s
N
4 October, Saturday. day, 18°; night, 13°; clear
Average data for 10 years
Federal Way September
17
sunny days
3
days with precipitation
10
cloudy days
17 sunny days; 3 days with precipitation; 10 cloudy days;
62
%
air humidity
2.2
m/s
Wind
N
30
mm of precipitation
(4% of annual average)
air humidity 62%; 30 millimeters of precipitation (4% of annual average); Wind northerly 2.2 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
W
NW
N
N
S
N
NW
W
N
NE
N
N
N
W
NW
E
SW
SW
SW
NW
S
S
E
E
E
N
NE
E
NE
SW
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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