SeaTac, WA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for SeaTac, WA in one place.
Mostly sunny, with a high near 84. West southwest wind 2 to 6 mph.
Local Weather Overview
This forecast page for SeaTac, WA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 23, 2026 2:16 AM PDT.
The active forecast window currently covers Jul 24 to Jul 29, 2026 for SeaTac, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 29, 2026
- Latest sync
- Jul 23, 2026 2:16 AM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in SeaTac
Friday looks like the warmest upcoming period in SeaTac at 84 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Saturday at about 7 to 12 mph SW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Jul 23, 2026 2:16 AM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- SEW
- Radar station
- KATX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 59. Southwest wind around 8 mph.
Mostly sunny, with a high near 73.
Mostly cloudy, with a low around 58.
A slight chance of rain between 11am and 5pm. Partly sunny, with a high near 74.
Mostly cloudy, with a low around 57.
Mostly sunny, with a high near 76.
Partly cloudy, with a low around 57.
Mostly sunny, with a high near 76.
Partly cloudy, with a low around 56.
Mostly sunny, with a high near 77.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Mostly Sunny
|
84°F |
2 to 6 mph
WSW
|
|
Friday Night
Jul 24
|
Mostly Clear
|
59°F |
8 mph
SW
|
|
Saturday
Jul 25
|
Mostly Sunny
|
73°F |
7 to 12 mph
SW
|
|
Saturday Night
Jul 25
|
Mostly Cloudy
|
58°F |
5 to 12 mph
SW
|
|
Sunday
Jul 26
|
Slight Chance Light Rain
|
74°F |
5 to 9 mph
SW
|
|
Sunday Night
Jul 26
|
Mostly Cloudy
|
57°F |
3 to 9 mph
SW
|
|
Monday
Jul 27
|
Mostly Sunny
|
76°F |
3 to 8 mph
SW
|
|
Monday Night
Jul 27
|
Partly Cloudy
|
57°F |
3 to 8 mph
WSW
|
|
Tuesday
Jul 28
|
Mostly Sunny
|
76°F |
5 to 8 mph
SW
|
|
Tuesday Night
Jul 28
|
Partly Cloudy
|
56°F |
1 to 8 mph
SW
|
|
Wednesday
Jul 29
|
Mostly Sunny
|
77°F |
1 to 7 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around SeaTac.
