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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
August
+24
+15
16 August, fri
+24
+15
Feels like
+19
756 mmHg
61%
4.2
m/s
S
Climate normal
+27
+20
16 August, Friday. day, 24°; night, 15°; partly cloudy
17
+24
+16
17 August, sat
+24
+16
Feels like
+16
751 mmHg
64%
6.9
m/s
N
Climate normal
+25
+20
17 August, Saturday. day, 24°; night, 16°; thunderstorm with rain
18
+24
+15
18 August, sun
+24
+15
Feels like
+20
755 mmHg
69%
4.4
m/s
SW
Climate normal
+25
+19
18 August, Sunday. day, 24°; night, 15°; partly cloudy
19
+24
+15
19 August, mon
+24
+15
Feels like
+19
757 mmHg
76%
3.7
m/s
SW
Climate normal
+24
+18
19 August, Monday. day, 24°; night, 15°; overcast
20
+24
+16
20 August, tue
+24
+16
Feels like
+20
757 mmHg
64%
3.6
m/s
NW
Climate normal
+24
+18
20 August, Tuesday. day, 24°; night, 16°; light rain
21
+20
+15
21 August, wed
+20
+15
Feels like
+17
757 mmHg
77%
5.6
m/s
SW
Climate normal
+23
+17
21 August, Wednesday. day, 20°; night, 15°; rain
22
+22
+15
22 August, thu
+22
+15
Feels like
+18
757 mmHg
76%
3.9
m/s
S
Climate normal
+23
+18
22 August, Thursday. day, 22°; night, 15°; overcast
23
+24
+15
23 August, fri
+24
+15
Feels like
+19
756 mmHg
69%
4.5
m/s
NW
Climate normal
+24
+18
23 August, Friday. day, 24°; night, 15°; partly cloudy
24
+25
+15
24 August, sat
+25
+15
Feels like
+20
758 mmHg
63%
4.6
m/s
NW
Climate normal
+24
+18
24 August, Saturday. day, 25°; night, 15°; clear
25
+24
+16
25 August, sun
+24
+16
Feels like
+19
758 mmHg
69%
5.5
m/s
SW
Climate normal
+24
+19
25 August, Sunday. day, 24°; night, 16°; mostly clear
26
+24
+14
26 August, mon
+24
+14
Feels like
+20
757 mmHg
70%
4.5
m/s
SW
Climate normal
+26
+19
26 August, Monday. day, 24°; night, 14°; partly cloudy
27
+24
+14
27 August, tue
+24
+14
Feels like
+19
757 mmHg
61%
4
m/s
W
Climate normal
+22
+18
27 August, Tuesday. day, 24°; night, 14°; partly cloudy
28
+18
+13
28 August, wed
+18
+13
Feels like
+13
729 mmHg
80%
3.6
m/s
W
Climate normal
+21
+16
28 August, Wednesday. day, 18°; night, 13°; light rain
29
+16
+12
29 August, thu
+16
+12
Feels like
+12
713 mmHg
86%
4
m/s
SW
Climate normal
+22
+16
29 August, Thursday. day, 16°; night, 12°; light rain
30
+13
+9
30 August, fri
+13
+9
Feels like
+10
711 mmHg
96%
3.5
m/s
SW
Climate normal
+20
+16
30 August, Friday. day, 13°; night, 9°; rain
31
+12
+10
31 August, sat
+12
+10
Feels like
+7
713 mmHg
98%
5.7
m/s
S
Climate normal
+21
+17
31 August, Saturday. day, 12°; night, 10°; rain
1 September
+11
+7
1 September, sun
+11
+7
Feels like
+8
712 mmHg
96%
2.8
m/s
SW
Climate normal
+22
+16
1 September, Sunday. day, 11°; night, 7°; rain
2
+16
+6
2 September, mon
+16
+6
Feels like
+10
719 mmHg
78%
3
m/s
W
Climate normal
+22
+17
2 September, Monday. day, 16°; night, 6°; mostly clear
3
+20
+9
3 September, tue
+20
+9
Feels like
+12
722 mmHg
59%
3.2
m/s
N
Climate normal
+22
+17
3 September, Tuesday. day, 20°; night, 9°; clear
4
+24
+12
4 September, wed
+24
+12
Feels like
+16
720 mmHg
56%
2.5
m/s
NW
Climate normal
+22
+17
4 September, Wednesday. day, 24°; night, 12°; clear
5
+26
+10
5 September, thu
+26
+10
Feels like
+18
718 mmHg
57%
2.9
m/s
W
Climate normal
+21
+17
5 September, Thursday. day, 26°; night, 10°; clear
6
+20
+8
6 September, fri
+20
+8
Feels like
+12
715 mmHg
68%
5.6
m/s
W
Climate normal
+22
+17
6 September, Friday. day, 20°; night, 8°; clear
7
+17
+7
7 September, sat
+17
+7
Feels like
+7
716 mmHg
64%
3.7
m/s
W
Climate normal
+22
+18
7 September, Saturday. day, 17°; night, 7°; mostly clear
8
+17
+5
8 September, sun
+17
+5
Feels like
+8
718 mmHg
48%
3
m/s
NE
Climate normal
+22
+17
8 September, Sunday. day, 17°; night, 5°; clear
9
+17
+5
9 September, mon
+17
+5
Feels like
+7
719 mmHg
42%
3.9
m/s
NE
Climate normal
+22
+17
9 September, Monday. day, 17°; night, 5°; clear
10
+19
+6
10 September, tue
+19
+6
Feels like
+10
719 mmHg
40%
3.3
m/s
NE
Climate normal
+25
+18
10 September, Tuesday. day, 19°; night, 6°; clear
11
+19
+6
11 September, wed
+19
+6
Feels like
+10
719 mmHg
38%
3.4
m/s
NE
Climate normal
+23
+17
11 September, Wednesday. day, 19°; night, 6°; clear
12
+21
+10
12 September, thu
+21
+10
Feels like
+12
721 mmHg
40%
2.4
m/s
E
Climate normal
+21
+16
12 September, Thursday. day, 21°; night, 10°; clear
13
+24
+12
13 September, fri
+24
+12
Feels like
+15
720 mmHg
46%
1.5
m/s
NW
Climate normal
+22
+16
13 September, Friday. day, 24°; night, 12°; clear
14
+26
+13
14 September, sat
+26
+13
Feels like
+18
718 mmHg
42%
2.8
m/s
E
Climate normal
+22
+17
14 September, Saturday. day, 26°; night, 13°; clear
Average for 30 days
15
sunny days
8
days with precipitation
7
cloudy days
15 sunny days; 8 days with precipitation; 7 cloudy days;
65
%
air humidity
3.9
m/s
Wind
SW
15
mm of precipitation
(3% of annual average)
air humidity 65%; 15 millimeters of precipitation (3% of annual average); Wind south-westerly 3.9 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
S
N
SW
SW
NW
SW
S
NW
NW
SW
SW
W
W
SW
SW
S
SW
W
N
NW
W
W
W
NE
NE
NE
NE
E
NW
E
16
Average data for 10 years
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
11
12
13
14
Daytime temperature
Night-time temperature
