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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
+22
+14
31 August, sun
+22
+14
Feels like
+17
760 mmHg
74%
3.2
m/s
SE
31 August, Sunday. day, 22°; night, 14°; rain
1
+22
+14
1 September, mon
+22
+14
Feels like
+17
760 mmHg
73%
3.5
m/s
SE
1 September, Monday. day, 22°; night, 14°; clear
2
+23
+14
2 September, tue
+23
+14
Feels like
+17
759 mmHg
72%
3.4
m/s
SE
2 September, Tuesday. day, 23°; night, 14°; clear
3
+23
+14
3 September, wed
+23
+14
Feels like
+17
760 mmHg
73%
3.4
m/s
SE
3 September, Wednesday. day, 23°; night, 14°; clear
4
+23
+14
4 September, thu
+23
+14
Feels like
+17
760 mmHg
73%
3
m/s
SE
4 September, Thursday. day, 23°; night, 14°; clear
5
+22
+14
5 September, fri
+22
+14
Feels like
+17
760 mmHg
73%
3.2
m/s
SE
5 September, Friday. day, 22°; night, 14°; clear
6
+22
+14
6 September, sat
+22
+14
Feels like
+17
761 mmHg
74%
3.3
m/s
SE
6 September, Saturday. day, 22°; night, 14°; rain
7
+22
+14
7 September, sun
+22
+14
Feels like
+17
761 mmHg
74%
3.7
m/s
SE
7 September, Sunday. day, 22°; night, 14°; partly cloudy
8
+22
+14
8 September, mon
+22
+14
Feels like
+16
760 mmHg
73%
3.7
m/s
SE
8 September, Monday. day, 22°; night, 14°; clear
9
+22
+14
9 September, tue
+22
+14
Feels like
+16
759 mmHg
73%
3.6
m/s
SE
9 September, Tuesday. day, 22°; night, 14°; clear
10
+22
+14
10 September, wed
+22
+14
Feels like
+16
760 mmHg
74%
3.5
m/s
SE
10 September, Wednesday. day, 22°; night, 14°; partly cloudy
11
+22
+14
11 September, thu
+22
+14
Feels like
+16
760 mmHg
73%
3.5
m/s
E
11 September, Thursday. day, 22°; night, 14°; clear
12
+22
+13
12 September, fri
+22
+13
Feels like
+16
760 mmHg
74%
3.2
m/s
SE
12 September, Friday. day, 22°; night, 13°; clear
13
+22
+13
13 September, sat
+22
+13
Feels like
+16
760 mmHg
75%
3.4
m/s
E
13 September, Saturday. day, 22°; night, 13°; clear
14
+21
+13
14 September, sun
+21
+13
Feels like
+16
758 mmHg
75%
3.2
m/s
SE
14 September, Sunday. day, 21°; night, 13°; partly cloudy
15
+21
+13
15 September, mon
+21
+13
Feels like
+16
758 mmHg
77%
3.4
m/s
SE
15 September, Monday. day, 21°; night, 13°; rain
16
+20
+13
16 September, tue
+20
+13
Feels like
+15
759 mmHg
78%
3.4
m/s
SE
16 September, Tuesday. day, 20°; night, 13°; rain
17
+19
+13
17 September, wed
+19
+13
Feels like
+14
759 mmHg
80%
4
m/s
SE
17 September, Wednesday. day, 19°; night, 13°; rain
18
+19
+13
18 September, thu
+19
+13
Feels like
+15
759 mmHg
80%
3.6
m/s
SE
18 September, Thursday. day, 19°; night, 13°; rain
19
+20
+13
19 September, fri
+20
+13
Feels like
+15
760 mmHg
80%
3.6
m/s
SE
19 September, Friday. day, 20°; night, 13°; rain
20
+20
+13
20 September, sat
+20
+13
Feels like
+14
761 mmHg
78%
3.5
m/s
SE
20 September, Saturday. day, 20°; night, 13°; rain
21
+20
+12
21 September, sun
+20
+12
Feels like
+14
761 mmHg
77%
3.5
m/s
E
21 September, Sunday. day, 20°; night, 12°; partly cloudy
22
+20
+12
22 September, mon
+20
+12
Feels like
+14
760 mmHg
75%
3.2
m/s
SE
22 September, Monday. day, 20°; night, 12°; clear
23
+20
+12
23 September, tue
+20
+12
Feels like
+14
760 mmHg
76%
3.6
m/s
SE
23 September, Tuesday. day, 20°; night, 12°; partly cloudy
24
+20
+12
24 September, wed
+20
+12
Feels like
+14
761 mmHg
79%
3.5
m/s
SE
24 September, Wednesday. day, 20°; night, 12°; partly cloudy
25
+20
+13
25 September, thu
+20
+13
Feels like
+15
760 mmHg
79%
3.8
m/s
SE
25 September, Thursday. day, 20°; night, 13°; overcast
26
+19
+12
26 September, fri
+19
+12
Feels like
+14
761 mmHg
80%
3.8
m/s
SE
26 September, Friday. day, 19°; night, 12°; rain
27
+19
+12
27 September, sat
+19
+12
Feels like
+14
761 mmHg
80%
4
m/s
E
27 September, Saturday. day, 19°; night, 12°; clear
28
+20
+12
28 September, sun
+20
+12
Feels like
+13
760 mmHg
78%
3.9
m/s
E
28 September, Sunday. day, 20°; night, 12°; clear
29
+19
+12
29 September, mon
+19
+12
Feels like
+13
759 mmHg
78%
3.9
m/s
SE
29 September, Monday. day, 19°; night, 12°; rain
30
+18
+12
30 September, tue
+18
+12
Feels like
+13
759 mmHg
80%
4
m/s
SE
30 September, Tuesday. day, 18°; night, 12°; rain
1
+18
+11
1 October, wed
+18
+11
Feels like
+12
760 mmHg
81%
3.5
m/s
SE
1 October, Wednesday. day, 18°; night, 11°; clear
2
+17
+11
2 October, thu
+17
+11
Feels like
+12
761 mmHg
80%
3.7
m/s
SE
2 October, Thursday. day, 17°; night, 11°; partly cloudy
3
+17
+11
3 October, fri
+17
+11
Feels like
+11
760 mmHg
79%
3.8
m/s
SE
3 October, Friday. day, 17°; night, 11°; clear
4
+17
+11
4 October, sat
+17
+11
Feels like
+11
760 mmHg
80%
3.8
m/s
SE
4 October, Saturday. day, 17°; night, 11°; clear
Average data for 10 years
Federal Way September
13
sunny days
10
days with precipitation
5
cloudy days
13 sunny days; 10 days with precipitation; 5 cloudy days;
76
%
air humidity
2.09
m/s
Wind
SE
62
mm of precipitation
(6% of annual average)
air humidity 76%; 62 millimeters of precipitation (6% of annual average); Wind south-easterly 2.09 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
E
SE
E
SE
SE
SE
SE
SE
SE
SE
E
SE
SE
SE
SE
SE
E
E
SE
SE
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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