SeaTac, WA Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for SeaTac, WA in one place.
Rain before 11am, then showers and thunderstorms between 11am and 5pm, then a chance of rain. Mostly cloudy, with a high near 62. Southwest wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
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: Jun 8, 2026 1:02 AM PDT.
The active forecast window currently covers Jun 9 to Jun 14, 2026 for SeaTac, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 1:02 AM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in SeaTac
Sunday looks like the warmest upcoming period in SeaTac at 87 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Tuesday at about 9 to 16 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 1:02 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
A chance of rain before 11pm. Mostly cloudy, with a low around 47. Southwest wind 7 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain between 11am and 5pm. Partly sunny, with a high near 65. Chance of precipitation is 20%.
Partly cloudy, with a low around 49.
Sunny, with a high near 71.
Mostly clear, with a low around 52.
Sunny, with a high near 74.
Mostly clear, with a low around 55.
Sunny, with a high near 81.
Clear, with a low around 58.
Sunny, with a high near 87.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Showers And Thunderstorms
|
62°F |
9 to 16 mph
SW
|
|
Tuesday Night
Jun 9
|
Chance Light Rain then Mostly Cloudy
|
47°F |
7 to 16 mph
SW
|
|
Wednesday
Jun 10
|
Slight Chance Light Rain
|
65°F |
7 mph
SSW
|
|
Wednesday Night
Jun 10
|
Partly Cloudy
|
49°F |
1 to 5 mph
SW
|
|
Thursday
Jun 11
|
Sunny
|
71°F |
1 to 7 mph
WSW
|
|
Thursday Night
Jun 11
|
Mostly Clear
|
52°F |
2 to 7 mph
N
|
|
Friday
Jun 12
|
Sunny
|
74°F |
2 to 9 mph
N
|
|
Friday Night
Jun 12
|
Mostly Clear
|
55°F |
3 to 9 mph
NNE
|
|
Saturday
Jun 13
|
Sunny
|
81°F |
3 to 10 mph
NNE
|
|
Saturday Night
Jun 13
|
Clear
|
58°F |
5 to 10 mph
NNE
|
|
Sunday
Jun 14
|
Sunny
|
87°F |
5 to 10 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around SeaTac.
