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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
August
+23
+15
12 August, mon
+23
+15
Feels like
+17
754 mmHg
61%
4.4
m/s
SW
Climate normal
+24
+19
12 August, Monday. day, 23°; night, 15°; light rain
13
+21
+16
13 August, tue
+21
+16
Feels like
+17
757 mmHg
70%
3.6
m/s
SW
Climate normal
+24
+19
13 August, Tuesday. day, 21°; night, 16°; light rain
14
+24
+16
14 August, wed
+24
+16
Feels like
+20
758 mmHg
68%
4.5
m/s
N
Climate normal
+24
+19
14 August, Wednesday. day, 24°; night, 16°; partly cloudy
15
+25
+15
15 August, thu
+25
+15
Feels like
+21
757 mmHg
67%
3.8
m/s
SW
Climate normal
+26
+20
15 August, Thursday. day, 25°; night, 15°; partly cloudy
16
+23
+15
16 August, fri
+23
+15
Feels like
+18
756 mmHg
63%
4.7
m/s
SW
Climate normal
+27
+20
16 August, Friday. day, 23°; night, 15°; mostly clear
17
+21
+14
17 August, sat
+21
+14
Feels like
+16
755 mmHg
78%
4.2
m/s
SW
Climate normal
+25
+20
17 August, Saturday. day, 21°; night, 14°; partly cloudy
18
+23
+14
18 August, sun
+23
+14
Feels like
+18
757 mmHg
65%
4.6
m/s
SW
Climate normal
+25
+19
18 August, Sunday. day, 23°; night, 14°; mostly clear
19
+23
+15
19 August, mon
+23
+15
Feels like
+19
757 mmHg
68%
3.9
m/s
SW
Climate normal
+24
+18
19 August, Monday. day, 23°; night, 15°; light rain
20
+22
+15
20 August, tue
+22
+15
Feels like
+16
758 mmHg
68%
5.2
m/s
SW
Climate normal
+24
+18
20 August, Tuesday. day, 22°; night, 15°; light rain
21
+23
+15
21 August, wed
+23
+15
Feels like
+18
758 mmHg
67%
4.3
m/s
SW
Climate normal
+23
+17
21 August, Wednesday. day, 23°; night, 15°; partly cloudy
22
+25
+14
22 August, thu
+25
+14
Feels like
+20
757 mmHg
61%
4.7
m/s
NW
Climate normal
+23
+18
22 August, Thursday. day, 25°; night, 14°; partly cloudy
23
+26
+15
23 August, fri
+26
+15
Feels like
+20
757 mmHg
61%
4.4
m/s
NW
Climate normal
+24
+18
23 August, Friday. day, 26°; night, 15°; partly cloudy
24
+28
+14
24 August, sat
+28
+14
Feels like
+21
757 mmHg
60%
4.4
m/s
W
Climate normal
+24
+18
24 August, Saturday. day, 28°; night, 14°; partly cloudy
25
+19
+11
25 August, sun
+19
+11
Feels like
+16
715 mmHg
90%
3.7
m/s
W
Climate normal
+24
+19
25 August, Sunday. day, 19°; night, 11°; rain
26
+14
+11
26 August, mon
+14
+11
Feels like
+12
719 mmHg
97%
2.8
m/s
SW
Climate normal
+26
+19
26 August, Monday. day, 14°; night, 11°; rain
27
+22
+10
27 August, tue
+22
+10
Feels like
+14
719 mmHg
74%
3.7
m/s
SW
Climate normal
+22
+18
27 August, Tuesday. day, 22°; night, 10°; mostly clear
28
+22
+13
28 August, wed
+22
+13
Feels like
+16
718 mmHg
67%
3.7
m/s
W
Climate normal
+21
+16
28 August, Wednesday. day, 22°; night, 13°; clear
29
+19
+6
29 August, thu
+19
+6
Feels like
+11
718 mmHg
67%
3.5
m/s
NE
Climate normal
+22
+16
29 August, Thursday. day, 19°; night, 6°; mostly clear
30
+22
+9
30 August, fri
+22
+9
Feels like
+13
719 mmHg
46%
4.3
m/s
E
Climate normal
+20
+16
30 August, Friday. day, 22°; night, 9°; clear
31
+21
+9
31 August, sat
+21
+9
Feels like
+16
716 mmHg
51%
2.8
m/s
NW
Climate normal
+21
+17
31 August, Saturday. day, 21°; night, 9°; mostly clear
1 September
+15
+13
1 September, sun
+15
+13
Feels like
+11
716 mmHg
84%
5.4
m/s
W
Climate normal
+22
+16
1 September, Sunday. day, 15°; night, 13°; partly cloudy
2
+14
+8
2 September, mon
+14
+8
Feels like
+11
715 mmHg
98%
4.2
m/s
W
Climate normal
+22
+17
2 September, Monday. day, 14°; night, 8°; light rain
3
+16
+7
3 September, tue
+16
+7
Feels like
+9
718 mmHg
79%
3.5
m/s
SW
Climate normal
+22
+17
3 September, Tuesday. day, 16°; night, 7°; mostly clear
4
+18
+6
4 September, wed
+18
+6
Feels like
+11
718 mmHg
70%
1.6
m/s
NW
Climate normal
+22
+17
4 September, Wednesday. day, 18°; night, 6°; mostly clear
5
+21
+7
5 September, thu
+21
+7
Feels like
+13
716 mmHg
60%
3.4
m/s
W
Climate normal
+21
+17
5 September, Thursday. day, 21°; night, 7°; clear
6
+23
+5
6 September, fri
+23
+5
Feels like
+14
716 mmHg
57%
3.2
m/s
SW
Climate normal
+22
+17
6 September, Friday. day, 23°; night, 5°; clear
7
+23
+7
7 September, sat
+23
+7
Feels like
+16
717 mmHg
58%
2.7
m/s
NW
Climate normal
+22
+18
7 September, Saturday. day, 23°; night, 7°; clear
8
+22
+9
8 September, sun
+22
+9
Feels like
+13
720 mmHg
51%
4.2
m/s
W
Climate normal
+22
+17
8 September, Sunday. day, 22°; night, 9°; clear
9
+24
+11
9 September, mon
+24
+11
Feels like
+17
720 mmHg
54%
2.3
m/s
SW
Climate normal
+22
+17
9 September, Monday. day, 24°; night, 11°; clear
10
+26
+9
10 September, tue
+26
+9
Feels like
+20
719 mmHg
56%
2.2
m/s
NW
Climate normal
+25
+18
10 September, Tuesday. day, 26°; night, 9°; clear
Average data for 10 years
Next, the average data for 10 years
11
+23
+17
11 September, wed
+23
+17
Feels like
+22
761 mmHg
56%
3
m/s
N
11 September, Wednesday. day, 23°; night, 17°; clear
12
+21
+16
12 September, thu
+21
+16
Feels like
+21
760 mmHg
57%
3.2
m/s
N
12 September, Thursday. day, 21°; night, 16°; clear
13
+22
+16
13 September, fri
+22
+16
Feels like
+21
759 mmHg
56%
3
m/s
N
13 September, Friday. day, 22°; night, 16°; clear
14
+22
+17
14 September, sat
+22
+17
Feels like
+22
759 mmHg
55%
2.5
m/s
W
14 September, Saturday. day, 22°; night, 17°; partly cloudy
Average for 30 days
15
sunny days
7
days with precipitation
8
cloudy days
15 sunny days; 7 days with precipitation; 8 cloudy days;
67
%
air humidity
3.8
m/s
Wind
SW
6
mm of precipitation
(1% of annual average)
air humidity 67%; 6 millimeters of precipitation (1% of annual average); Wind south-westerly 3.8 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
SW
SW
N
SW
SW
SW
SW
SW
SW
SW
NW
NW
W
W
SW
SW
W
NE
E
NW
W
W
SW
NW
W
SW
NW
W
SW
NW
12
Average data for 10 years
13
14
15
16
17
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
Daytime temperature
Night-time temperature
