SeaTac weather — 10-day forecast
Temperature, rain, wind and feels-like in SeaTac, hour by hour and over 10 days, with the seasonal normal for context.
Now
Reading from 01:00 · NOAA HRRR model
9 °C
Overcast
Feels like 6 °C
Next 12 h
- 019°13 %
- 029°12 %
- 038°13 %
- 048°
- 058°
- 068°
- 078°
- 07:36Sunrise
- 088°
- 099°
- 1011°
- 1113°
- 1215°
- 1316°
↓ 8°06:00↑ 16°13:00
- Humidity
- 93 %
- Dew point
- 8 °C
- Gusts
- 31.0 km/h
- Clouds
- 100 %
- Pressure
- 1,017 hPa
Grid point 0.9 km away · 3.0 km grid · elevation 112 m
Air quality
The European air-quality index for the city, and the pollutants that set it.
Index set by PM2.5
- PM2.5
- 13.5µg/m³
- PM10
- 13.6µg/m³
- Ozone
- 14.4µg/m³
- Nitrogen dioxide
- 32.4µg/m³▲
- Sulphur dioxide
- 4.9µg/m³
- Carbon monoxide
- 206.0µg/m³
- Dust (AOD)
- 0.00
Generated using Copernicus Atmosphere Monitoring Service information
Hour by hour
Step-by-step detail: temperature, wind, cloud cover and ultraviolet.
9 days
Each day's extremes and the chance of rain, out to the end of the run.
Rain probability (> 1 mm): 50 ECMWF ensemble members.
Today
Clear sky
18°
8°
Wed
Mainly clear
22°
8°
Thu
Light drizzle52 %
12°
8°
Fri
Light drizzle10 %
12°
6°
Sat
Light drizzle0 mm
10°
5°
Sun
Light rain11 mm
12°
5°
Mon
Light drizzle6 mm
12°
10°
Tue
Partly cloudy0 mm
14°
9°
Wed
Light drizzle2 mm
17°
11°
Sun and UV
Sunrise, sunset, day length and ultraviolet intensity.
- Sunrise
- 07:36
- Daylight
- 10 h 36
- Sunset
- 18:12
Radiation · 11.6 MJ/m²
Sea state
Sea state at the marine grid point closest to the city.
Significant height: the mean of the highest third of waves. Individual waves reach about twice it.
Data: ECMWF
Today in SeaTac the mean temperature will be 11.9 °C — +1.2 °C against the normal for 20 October, measured from 1940 to 2026. (1,290 obs.)
Nearby cities
The climate around SeaTac