Extended 5-day forecasts, SeaTac (WA)
This is the extended 5 day forecast for SeaTac. The forecast is updated every 3 hours and shows temperature, weather condition, wind direction and speed, chance of precipitation.Get more details in the extended 10 day weather forecast for SeaTac. Check out our December climate page to see if the current temperatures in SeaTac is typical for this time of year.
HOURLY
Temperature
Feels like
Precipitation
Chance of rain
Wind direction
Wind speed
00:00
7°C
4°C
0.1 mm
81%
S 
5 m/s
01:00
8°C
5°C
0 mm
72%
S
6 m/s
02:00
8°C
5°C
0 mm
73%
S
6 m/s
03:00
7°C
4°C
0 mm
75%
S
7 m/s
04:00
8°C
4°C
0.5 mm
76%
S
7 m/s
05:00
8°C
4°C
0.2 mm
82%
S
8 m/s
06:00
8°C
4°C
0.2 mm
87%
S
8 m/s
07:00
8°C
4°C
0.3 mm
93%
S
9 m/s
08:00
9°C
5°C
0.2 mm
85%
SW
9 m/s
09:00
9°C
5°C
0.1 mm
78%
SW
9 m/s
10:00
9°C
5°C
0.2 mm
71%
SW
8 m/s
11:00
10°C
6°C
0.2 mm
68%
SW
8 m/s
12:00
10°C
10°C
0.2 mm
66%
SW
7 m/s
13:00
9°C
6°C
0.5 mm
64%
SW
7 m/s
14:00
9°C
6°C
0.5 mm
61%
SW
6 m/s
15:00
9°C
6°C
0.1 mm
58%
SW
6 m/s
16:00
8°C
6°C
0 mm
54%
S
6 m/s
17:00
8°C
5°C
0 mm
47%
S
6 m/s
18:00
8°C
5°C
0 mm
39%
S
6 m/s
19:00
8°C
5°C
0 mm
31%
S
6 m/s
20:00
7°C
5°C
0 mm
23%
S
5 m/s
21:00
7°C
5°C
0 mm
15%
S
4 m/s
22:00
7°C
5°C
0 mm
7%
S
3 m/s
23:00
7°C
5°C
0 mm
9%
S
3 m/s
7°C
4°C
0.1 mm
81%
S
5 m/s
01:00
8°C
5°C
0 mm
72%
S
6 m/s
02:00
8°C
5°C
0 mm
73%
S
6 m/s
03:00
7°C
4°C
0 mm
75%
S
7 m/s
04:00
8°C
4°C
0.5 mm
76%
S
7 m/s
05:00
8°C
4°C
0.2 mm
82%
S
8 m/s
06:00
8°C
4°C
0.2 mm
87%
S
8 m/s
07:00
8°C
4°C
0.3 mm
93%
S
9 m/s
08:00
9°C
5°C
0.2 mm
85%
SW
9 m/s
09:00
9°C
5°C
0.1 mm
78%
SW
9 m/s
10:00
9°C
5°C
0.2 mm
71%
SW
8 m/s
11:00
10°C
6°C
0.2 mm
68%
SW
8 m/s
12:00
10°C
10°C
0.2 mm
66%
SW
7 m/s
13:00
9°C
6°C
0.5 mm
64%
SW
7 m/s
14:00
9°C
6°C
0.5 mm
61%
SW
6 m/s
15:00
9°C
6°C
0.1 mm
58%
SW
6 m/s
16:00
8°C
6°C
0 mm
54%
S
6 m/s
17:00
8°C
5°C
0 mm
47%
S
6 m/s
18:00
8°C
5°C
0 mm
39%
S
6 m/s
19:00
8°C
5°C
0 mm
31%
S
6 m/s
20:00
7°C
5°C
0 mm
23%
S
5 m/s
21:00
7°C
5°C
0 mm
15%
S
4 m/s
22:00
7°C
5°C
0 mm
7%
S
3 m/s
23:00
7°C
5°C
0 mm
9%
S
3 m/s
Monday 30 Dec
Temperature
Feels like
Precipitation
Chance of rain
Humidity
Wind direction
Wind speed
Temp
Feels
Rain
Chance
Humidity
Wind
Speed
night
5°C
1°C
0 mm
30%
88%
S
6 m/s
5°C
1°C
0 mm
30%
88%
S
6 m/s
morning
6°C
2°C
0 mm
24%
85%
SW
6 m/s
6°C
2°C
0 mm
24%
85%
SW
6 m/s
afternoon
7°C
4°C
0.7 mm
60%
80%
SW
4 m/s
7°C
4°C
0.7 mm
60%
80%
SW
4 m/s
evening
5°C
2°C
0.1 mm
46%
89%
SE
4 m/s
5°C
2°C
0.1 mm
46%
89%
SE
4 m/s
Tuesday 31 Dec
Temperature
Feels like
Precipitation
Chance of rain
Humidity
Wind direction
Wind speed
Temp
Feels
Rain
Chance
Humidity
Wind
Speed
night
4°C
2°C
0.2 mm
29%
93%
S
3 m/s
4°C
2°C
0.2 mm
29%
93%
S
3 m/s
morning
4°C
1°C
0.1 mm
14%
84%
SE
4 m/s
4°C
1°C
0.1 mm
14%
84%
SE
4 m/s
afternoon
7°C
5°C
0 mm
6%
80%
S
2 m/s
7°C
5°C
0 mm
6%
80%
S
2 m/s
evening
6°C
4°C
0 mm
22%
80%
SE
4 m/s
6°C
4°C
0 mm
22%
80%
SE
4 m/s
Wednesday 1 Jan
Temperature
Feels like
Precipitation
Chance of rain
Humidity
Wind direction
Wind speed
Temp
Feels
Rain
Chance
Humidity
Wind
Speed
night
5°C
2°C
1.1 mm
52%
87%
SE
3 m/s
5°C
2°C
1.1 mm
52%
87%
SE
3 m/s
morning
5°C
2°C
5.5 mm
70%
88%
E
5 m/s
5°C
2°C
5.5 mm
70%
88%
E
5 m/s
afternoon
7°C
4°C
8.3 mm
67%
89%
SE
4 m/s
7°C
4°C
8.3 mm
67%
89%
SE
4 m/s
evening
8°C
5°C
1 mm
61%
90%
S
6 m/s
8°C
5°C
1 mm
61%
90%
S
6 m/s
