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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
11
+24
+19
11 August, sun
+24
+19
Feels like
+25
760 mmHg
62%
2.9
m/s
NW
11 August, Sunday. day, 24°; night, 19°; partly cloudy
12
+24
+19
12 August, mon
+24
+19
Feels like
+25
760 mmHg
62%
2.7
m/s
NW
12 August, Monday. day, 24°; night, 19°; clear
13
+24
+19
13 August, tue
+24
+19
Feels like
+24
760 mmHg
58%
3
m/s
NW
13 August, Tuesday. day, 24°; night, 19°; clear
14
+24
+19
14 August, wed
+24
+19
Feels like
+25
761 mmHg
60%
2.7
m/s
N
14 August, Wednesday. day, 24°; night, 19°; partly cloudy
15
+26
+20
15 August, thu
+26
+20
Feels like
+27
761 mmHg
56%
3
m/s
N
15 August, Thursday. day, 26°; night, 20°; clear
16
+27
+20
16 August, fri
+27
+20
Feels like
+28
761 mmHg
54%
3
m/s
N
16 August, Friday. day, 27°; night, 20°; clear
17
August
+24
+16
17 August, sat
+24
+16
Feels like
+16
751 mmHg
65%
6.8
m/s
N
Climate normal
+25
+20
17 August, Saturday. day, 24°; night, 16°; thunderstorm with rain
18
+23
+15
18 August, sun
+23
+15
Feels like
+18
755 mmHg
72%
5.2
m/s
SW
Climate normal
+25
+19
18 August, Sunday. day, 23°; night, 15°; thunderstorm with rain
19
+22
+15
19 August, mon
+22
+15
Feels like
+18
757 mmHg
67%
4.3
m/s
SW
Climate normal
+24
+18
19 August, Monday. day, 22°; night, 15°; partly cloudy
20
+20
+15
20 August, tue
+20
+15
Feels like
+17
759 mmHg
81%
4.3
m/s
SW
Climate normal
+24
+18
20 August, Tuesday. day, 20°; night, 15°; partly cloudy
21
+21
+15
21 August, wed
+21
+15
Feels like
+17
757 mmHg
74%
4.8
m/s
SW
Climate normal
+23
+17
21 August, Wednesday. day, 21°; night, 15°; light rain
22
+21
+14
22 August, thu
+21
+14
Feels like
+17
755 mmHg
71%
4.3
m/s
NW
Climate normal
+23
+18
22 August, Thursday. day, 21°; night, 14°; light rain
23
+23
+14
23 August, fri
+23
+14
Feels like
+18
755 mmHg
65%
4.2
m/s
W
Climate normal
+24
+18
23 August, Friday. day, 23°; night, 14°; light rain
24
+22
+15
24 August, sat
+22
+15
Feels like
+18
758 mmHg
68%
5.3
m/s
SW
Climate normal
+24
+18
24 August, Saturday. day, 22°; night, 15°; light rain
25
+23
+15
25 August, sun
+23
+15
Feels like
+18
760 mmHg
67%
4.5
m/s
S
Climate normal
+24
+19
25 August, Sunday. day, 23°; night, 15°; partly cloudy
26
+26
+15
26 August, mon
+26
+15
Feels like
+21
759 mmHg
61%
3.8
m/s
NW
Climate normal
+26
+19
26 August, Monday. day, 26°; night, 15°; clear
27
+25
+15
27 August, tue
+25
+15
Feels like
+21
757 mmHg
65%
3.7
m/s
W
Climate normal
+22
+18
27 August, Tuesday. day, 25°; night, 15°; partly cloudy
28
+24
+15
28 August, wed
+24
+15
Feels like
+19
756 mmHg
66%
4.3
m/s
W
Climate normal
+21
+16
28 August, Wednesday. day, 24°; night, 15°; partly cloudy
29
+22
+7
29 August, thu
+22
+7
Feels like
+15
731 mmHg
73%
4.4
m/s
W
Climate normal
+22
+16
29 August, Thursday. day, 22°; night, 7°; mostly clear
30
+23
+7
30 August, fri
+23
+7
Feels like
+14
717 mmHg
68%
4.4
m/s
W
Climate normal
+20
+16
30 August, Friday. day, 23°; night, 7°; mostly clear
31
+26
+12
31 August, sat
+26
+12
Feels like
+20
715 mmHg
62%
3
m/s
W
Climate normal
+21
+17
31 August, Saturday. day, 26°; night, 12°; clear
1 September
+28
+10
1 September, sun
+28
+10
Feels like
+21
715 mmHg
59%
3.5
m/s
W
Climate normal
+22
+16
1 September, Sunday. day, 28°; night, 10°; clear
2
+25
+11
2 September, mon
+25
+11
Feels like
+19
716 mmHg
63%
3.2
m/s
SW
Climate normal
+22
+17
2 September, Monday. day, 25°; night, 11°; clear
3
+28
+11
3 September, tue
+28
+11
Feels like
+20
715 mmHg
50%
2.8
m/s
NW
Climate normal
+22
+17
3 September, Tuesday. day, 28°; night, 11°; mostly clear
4
+27
+9
4 September, wed
+27
+9
Feels like
+20
715 mmHg
47%
3.1
m/s
W
Climate normal
+22
+17
4 September, Wednesday. day, 27°; night, 9°; mostly clear
5
+25
+9
5 September, thu
+25
+9
Feels like
+16
715 mmHg
46%
4.5
m/s
W
Climate normal
+21
+17
5 September, Thursday. day, 25°; night, 9°; clear
6
+16
+14
6 September, fri
+16
+14
Feels like
+12
715 mmHg
85%
5
m/s
SW
Climate normal
+22
+17
6 September, Friday. day, 16°; night, 14°; rain
7
+14
+4
7 September, sat
+14
+4
Feels like
+6
716 mmHg
74%
4.9
m/s
W
Climate normal
+22
+18
7 September, Saturday. day, 14°; night, 4°; light rain
8
+19
+7
8 September, sun
+19
+7
Feels like
+10
722 mmHg
45%
3.2
m/s
NW
Climate normal
+22
+17
8 September, Sunday. day, 19°; night, 7°; clear
9
+21
+8
9 September, mon
+21
+8
Feels like
+13
723 mmHg
42%
2.5
m/s
NW
Climate normal
+22
+17
9 September, Monday. day, 21°; night, 8°; clear
10
+21
+13
10 September, tue
+21
+13
Feels like
+14
720 mmHg
80%
3.8
m/s
NW
Climate normal
+25
+18
10 September, Tuesday. day, 21°; night, 13°; mostly clear
11
+25
+9
11 September, wed
+25
+9
Feels like
+18
719 mmHg
63%
3.7
m/s
NW
Climate normal
+23
+17
11 September, Wednesday. day, 25°; night, 9°; clear
12
+22
+13
12 September, thu
+22
+13
Feels like
+16
717 mmHg
72%
4.6
m/s
W
Climate normal
+21
+16
12 September, Thursday. day, 22°; night, 13°; clear
13
+18
+3
13 September, fri
+18
+3
Feels like
+10
716 mmHg
74%
4.4
m/s
W
Climate normal
+22
+16
13 September, Friday. day, 18°; night, 3°; mostly clear
14
+19
+5
14 September, sat
+19
+5
Feels like
+11
718 mmHg
63%
3.8
m/s
W
Climate normal
+22
+17
14 September, Saturday. day, 19°; night, 5°; clear
Average for 30 days
18
sunny days
7
days with precipitation
5
cloudy days
18 sunny days; 7 days with precipitation; 5 cloudy days;
65
%
air humidity
4.1
m/s
Wind
W
6
mm of precipitation
(1% of annual average)
air humidity 65%; 6 millimeters of precipitation (1% of annual average); Wind westerly 4.1 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
N
SW
SW
SW
SW
NW
W
SW
S
NW
W
W
W
W
W
W
SW
NW
W
W
SW
W
NW
NW
NW
NW
W
W
W
W
17
Average data for 10 years
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
September
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Daytime temperature
Night-time temperature
