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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
+18
754 mmHg
62%
4.5
m/s
SW
Climate normal
+24
+19
12 August, Monday. day, 23°; night, 15°; overcast
13
+22
+16
13 August, tue
+22
+16
Feels like
+19
756 mmHg
67%
3.5
m/s
SW
Climate normal
+24
+19
13 August, Tuesday. day, 22°; night, 16°; overcast
14
+25
+16
14 August, wed
+25
+16
Feels like
+21
758 mmHg
67%
4.3
m/s
N
Climate normal
+24
+19
14 August, Wednesday. day, 25°; night, 16°; partly cloudy
15
+25
+15
15 August, thu
+25
+15
Feels like
+21
757 mmHg
67%
3.7
m/s
SW
Climate normal
+26
+20
15 August, Thursday. day, 25°; night, 15°; overcast
16
+22
+14
16 August, fri
+22
+14
Feels like
+17
756 mmHg
65%
4.1
m/s
S
Climate normal
+27
+20
16 August, Friday. day, 22°; night, 14°; light rain
17
+22
+15
17 August, sat
+22
+15
Feels like
+18
755 mmHg
72%
4.5
m/s
W
Climate normal
+25
+20
17 August, Saturday. day, 22°; night, 15°; partly cloudy
18
+23
+14
18 August, sun
+23
+14
Feels like
+18
756 mmHg
70%
4.2
m/s
SW
Climate normal
+25
+19
18 August, Sunday. day, 23°; night, 14°; overcast
19
+24
+14
19 August, mon
+24
+14
Feels like
+19
757 mmHg
62%
4
m/s
NW
Climate normal
+24
+18
19 August, Monday. day, 24°; night, 14°; light rain
20
+24
+15
20 August, tue
+24
+15
Feels like
+19
759 mmHg
63%
4.2
m/s
NW
Climate normal
+24
+18
20 August, Tuesday. day, 24°; night, 15°; light rain
21
+25
+14
21 August, wed
+25
+14
Feels like
+19
758 mmHg
66%
4.9
m/s
SW
Climate normal
+23
+17
21 August, Wednesday. day, 25°; night, 14°; partly cloudy
22
+26
+14
22 August, thu
+26
+14
Feels like
+20
757 mmHg
62%
4.7
m/s
SW
Climate normal
+23
+18
22 August, Thursday. day, 26°; night, 14°; partly cloudy
23
+26
+16
23 August, fri
+26
+16
Feels like
+20
757 mmHg
59%
4.7
m/s
W
Climate normal
+24
+18
23 August, Friday. day, 26°; night, 16°; partly cloudy
24
+20
+12
24 August, sat
+20
+12
Feels like
+15
719 mmHg
66%
3.2
m/s
W
Climate normal
+24
+18
24 August, Saturday. day, 20°; night, 12°; partly cloudy
25
+19
+13
25 August, sun
+19
+13
Feels like
+14
718 mmHg
81%
3.7
m/s
W
Climate normal
+24
+19
25 August, Sunday. day, 19°; night, 13°; light rain
26
+13
+12
26 August, mon
+13
+12
Feels like
+12
717 mmHg
100%
2.8
m/s
SW
Climate normal
+26
+19
26 August, Monday. day, 13°; night, 12°; rain
27
+13
+11
27 August, tue
+13
+11
Feels like
+11
717 mmHg
99%
3.7
m/s
SW
Climate normal
+22
+18
27 August, Tuesday. day, 13°; night, 11°; light rain
28
+15
+5
28 August, wed
+15
+5
Feels like
+7
718 mmHg
81%
3.7
m/s
W
Climate normal
+21
+16
28 August, Wednesday. day, 15°; night, 5°; partly cloudy
29
+21
+8
29 August, thu
+21
+8
Feels like
+14
720 mmHg
48%
3.5
m/s
NE
Climate normal
+22
+16
29 August, Thursday. day, 21°; night, 8°; clear
30
+22
+9
30 August, fri
+22
+9
Feels like
+13
721 mmHg
42%
4.3
m/s
E
Climate normal
+20
+16
30 August, Friday. day, 22°; night, 9°; clear
31
+25
+7
31 August, sat
+25
+7
Feels like
+14
719 mmHg
54%
2.8
m/s
NW
Climate normal
+21
+17
31 August, Saturday. day, 25°; night, 7°; clear
1 September
+21
+10
1 September, sun
+21
+10
Feels like
+14
717 mmHg
59%
5.4
m/s
W
Climate normal
+22
+16
1 September, Sunday. day, 21°; night, 10°; clear
2
+20
+9
2 September, mon
+20
+9
Feels like
+12
716 mmHg
70%
4.2
m/s
W
Climate normal
+22
+17
2 September, Monday. day, 20°; night, 9°; mostly clear
3
+15
+10
3 September, tue
+15
+10
Feels like
+11
714 mmHg
85%
3.5
m/s
SW
Climate normal
+22
+17
3 September, Tuesday. day, 15°; night, 10°; light rain
4
+14
+7
4 September, wed
+14
+7
Feels like
+11
710 mmHg
95%
1.6
m/s
NW
Climate normal
+22
+17
4 September, Wednesday. day, 14°; night, 7°; rain
5
+20
+7
5 September, thu
+20
+7
Feels like
+13
716 mmHg
76%
3.4
m/s
W
Climate normal
+21
+17
5 September, Thursday. day, 20°; night, 7°; clear
6
+22
+11
6 September, fri
+22
+11
Feels like
+15
719 mmHg
67%
3.2
m/s
SW
Climate normal
+22
+17
6 September, Friday. day, 22°; night, 11°; clear
7
+23
+7
7 September, sat
+23
+7
Feels like
+18
717 mmHg
61%
2.7
m/s
NW
Climate normal
+22
+18
7 September, Saturday. day, 23°; night, 7°; clear
8
+20
+6
8 September, sun
+20
+6
Feels like
+13
717 mmHg
67%
4.2
m/s
W
Climate normal
+22
+17
8 September, Sunday. day, 20°; night, 6°; clear
9
+14
+11
9 September, mon
+14
+11
Feels like
+10
716 mmHg
82%
2.3
m/s
SW
Climate normal
+22
+17
9 September, Monday. day, 14°; night, 11°; rain
10
+15
+10
10 September, tue
+15
+10
Feels like
+11
719 mmHg
90%
2.2
m/s
NW
Climate normal
+25
+18
10 September, Tuesday. day, 15°; night, 10°; partly cloudy
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
9
sunny days
9
days with precipitation
12
cloudy days
9 sunny days; 9 days with precipitation; 12 cloudy days;
70
%
air humidity
3.7
m/s
Wind
SW
8
mm of precipitation
(2% of annual average)
air humidity 70%; 8 millimeters of precipitation (2% of annual average); Wind south-westerly 3.7 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
SW
SW
N
SW
S
W
SW
NW
NW
SW
SW
W
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
