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Monthly weather forecast in Seattle
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 September
+22
+16
1 September, sun
+22
+16
Feels like
+22
761 mmHg
61%
3.2
m/s
NW
1 September, Sunday. day, 22°; night, 16°; clear
2
+22
+17
2 September, mon
+22
+17
Feels like
+22
761 mmHg
63%
3
m/s
NW
2 September, Monday. day, 22°; night, 17°; partly cloudy
3
+22
+17
3 September, tue
+22
+17
Feels like
+22
761 mmHg
61%
3
m/s
N
3 September, Tuesday. day, 22°; night, 17°; clear
4
+22
+17
4 September, wed
+22
+17
Feels like
+21
761 mmHg
61%
3.5
m/s
N
4 September, Wednesday. day, 22°; night, 17°; rain
5
+21
+17
5 September, thu
+21
+17
Feels like
+21
761 mmHg
66%
3
m/s
S
5 September, Thursday. day, 21°; night, 17°; partly cloudy
6
September
+29
+17
6 September, fri
+29
+17
Feels like
+24
755 mmHg
59%
5.4
m/s
N
Climate normal
+22
+17
6 September, Friday. day, 29°; night, 17°; mostly clear
7
+27
+17
7 September, sat
+27
+17
Feels like
+23
752 mmHg
63%
4.3
m/s
N
Climate normal
+22
+18
7 September, Saturday. day, 27°; night, 17°; partly cloudy
8
+26
+15
8 September, sun
+26
+15
Feels like
+20
753 mmHg
67%
4.4
m/s
SW
Climate normal
+22
+17
8 September, Sunday. day, 26°; night, 15°; partly cloudy
9
+23
+14
9 September, mon
+23
+14
Feels like
+19
755 mmHg
71%
3
m/s
S
Climate normal
+22
+17
9 September, Monday. day, 23°; night, 14°; overcast
10
+20
+13
10 September, tue
+20
+13
Feels like
+16
754 mmHg
66%
3.6
m/s
SW
Climate normal
+25
+18
10 September, Tuesday. day, 20°; night, 13°; light rain
11
+18
+13
11 September, wed
+18
+13
Feels like
+13
752 mmHg
70%
4.1
m/s
SW
Climate normal
+23
+17
11 September, Wednesday. day, 18°; night, 13°; mostly clear
12
+21
+13
12 September, thu
+21
+13
Feels like
+16
755 mmHg
68%
3.9
m/s
SW
Climate normal
+21
+16
12 September, Thursday. day, 21°; night, 13°; mostly clear
13
+21
+14
13 September, fri
+21
+14
Feels like
+16
756 mmHg
72%
4.4
m/s
NW
Climate normal
+22
+16
13 September, Friday. day, 21°; night, 14°; partly cloudy
14
+22
+14
14 September, sat
+22
+14
Feels like
+18
756 mmHg
67%
3.3
m/s
NW
Climate normal
+22
+17
14 September, Saturday. day, 22°; night, 14°; partly cloudy
15
+22
+13
15 September, sun
+22
+13
Feels like
+18
757 mmHg
65%
3.1
m/s
SW
Climate normal
+21
+16
15 September, Sunday. day, 22°; night, 13°; overcast
16
+21
+12
16 September, mon
+21
+12
Feels like
+15
755 mmHg
65%
4.5
m/s
SW
Climate normal
+20
+15
16 September, Monday. day, 21°; night, 12°; partly cloudy
17
+22
+12
17 September, tue
+22
+12
Feels like
+16
756 mmHg
63%
4.9
m/s
W
Climate normal
+20
+16
17 September, Tuesday. day, 22°; night, 12°; partly cloudy
18
+23
+3
18 September, wed
+23
+3
Feels like
+14
748 mmHg
69%
4.4
m/s
W
Climate normal
+20
+15
18 September, Wednesday. day, 23°; night, 3°; partly cloudy
19
+15
+9
19 September, thu
+15
+9
Feels like
+10
716 mmHg
61%
3.4
m/s
W
Climate normal
+19
+15
19 September, Thursday. day, 15°; night, 9°; clear
20
+18
+8
20 September, fri
+18
+8
Feels like
+11
717 mmHg
70%
2.5
m/s
NW
Climate normal
+20
+14
20 September, Friday. day, 18°; night, 8°; partly cloudy
21
+21
+10
21 September, sat
+21
+10
Feels like
+16
716 mmHg
99%
3.1
m/s
S
Climate normal
+20
+15
21 September, Saturday. day, 21°; night, 10°; partly cloudy
22
+22
+9
22 September, sun
+22
+9
Feels like
+14
717 mmHg
98%
5.6
m/s
SW
Climate normal
+19
+15
22 September, Sunday. day, 22°; night, 9°; partly cloudy
23
+23
+7
23 September, mon
+23
+7
Feels like
+16
719 mmHg
98%
4.4
m/s
SW
Climate normal
+19
+15
23 September, Monday. day, 23°; night, 7°; partly cloudy
24
+20
+8
24 September, tue
+20
+8
Feels like
+15
716 mmHg
91%
3.7
m/s
S
Climate normal
+18
+15
24 September, Tuesday. day, 20°; night, 8°; partly cloudy
25
+19
+8
25 September, wed
+19
+8
Feels like
+13
712 mmHg
99%
4.6
m/s
SW
Climate normal
+18
+15
25 September, Wednesday. day, 19°; night, 8°; overcast
26
+14
+5
26 September, thu
+14
+5
Feels like
+8
716 mmHg
81%
1.9
m/s
SW
Climate normal
+19
+15
26 September, Thursday. day, 14°; night, 5°; partly cloudy
27
+14
+8
27 September, fri
+14
+8
Feels like
+7
718 mmHg
67%
3.5
m/s
E
Climate normal
+19
+14
27 September, Friday. day, 14°; night, 8°; mostly clear
28
+18
+10
28 September, sat
+18
+10
Feels like
+12
717 mmHg
73%
2.4
m/s
NW
Climate normal
+19
+14
28 September, Saturday. day, 18°; night, 10°; partly cloudy
29
+22
+11
29 September, sun
+22
+11
Feels like
+16
713 mmHg
77%
3
m/s
SW
Climate normal
+18
+13
29 September, Sunday. day, 22°; night, 11°; partly cloudy
30
+18
+11
30 September, mon
+18
+11
Feels like
+13
712 mmHg
59%
3.7
m/s
E
Climate normal
+17
+14
30 September, Monday. day, 18°; night, 11°; light rain
1 October
+17
+11
1 October, tue
+17
+11
Feels like
+12
712 mmHg
64%
3.9
m/s
E
Climate normal
+17
+14
1 October, Tuesday. day, 17°; night, 11°; light rain
2
+13
+11
2 October, wed
+13
+11
Feels like
+9
711 mmHg
72%
3.2
m/s
W
Climate normal
+17
+13
2 October, Wednesday. day, 13°; night, 11°; rain
3
+11
+7
3 October, thu
+11
+7
Feels like
+8
709 mmHg
70%
1.3
m/s
NE
Climate normal
+17
+13
3 October, Thursday. day, 11°; night, 7°; rain
4
+8
+7
4 October, fri
+8
+7
Feels like
+4
714 mmHg
67%
3
m/s
W
Climate normal
+17
+13
4 October, Friday. day, 8°; night, 7°; rain
5
+8
+6
5 October, sat
+8
+6
Feels like
+4
712 mmHg
63%
1.7
m/s
E
Climate normal
+18
+13
5 October, Saturday. day, 8°; night, 6°; rain
Average for 30 days
11
sunny days
1
day with precipitation
18
cloudy days
11 sunny days; 1 day with precipitation; 18 cloudy days;
72
%
air humidity
3.6
m/s
Wind
SW
12
mm of precipitation
(2% of annual average)
air humidity 72%; 12 millimeters of precipitation (2% of annual average); Wind south-westerly 3.6 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
N
N
SW
S
SW
SW
SW
NW
NW
SW
SW
W
W
W
NW
S
SW
SW
S
SW
SW
E
NW
SW
E
E
W
NE
W
E
6
Average data for 10 years
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
October
2
3
4
5
Daytime temperature
Night-time temperature
