Seattle/Tacoma International Airport (SEA) 15 Day Weather Forecast, Seattle United States
Current weather conditions and 15 day weather forecast for Seattle/Tacoma International Airport in Seattle, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at SEA
| 13 September 2026 Sun 17.8 ° C ( 64°F )  Patchy rain nearby |
Feels Like : 15.4 ° C / 59.7°F Humidity : % 43 Pressure : 1010 mb Wind Speed : 6.5 kmph / 4 miles from SSW 
Visibility : 10 km Precipitation (rainfall) : 0.02 mm Cloud (%) : 100 |
15-day weather forecast for Seattle/Tacoma International Airport, Seattle, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 12 September 2026 Sat |  Overcast |
11.5 ° C | 21.2 ° C | 16 ° C | % 66 | 16.2 km/h | 70% |
| 13 September 2026 Sun |  Light rain |
11 ° C | 13.8 ° C | 12.4 ° C | % 92 | 15.5 km/h | 92% |
| 14 September 2026 Mon | Patchy rain nearby |
11.5 ° C | 19.2 ° C | 14.4 ° C | % 73 | 10.8 km/h | 46% |
| 15 September 2026 Tue |  Sunny |
10.3 ° C | 20.5 ° C | 14.9 ° C | % 67 | 13 km/h | 7% |
| 16 September 2026 Wed | Sunny |
10.9 ° C | 24 ° C | 16.7 ° C | % 64 | 10.8 km/h | 4% |
| 17 September 2026 Thu | Sunny |
13.1 ° C | 26.2 ° C | 18.9 ° C | % 60 | 9.7 km/h | 3% |
| 18 September 2026 Fri | Sunny |
15.7 ° C | 28.8 ° C | 21.1 ° C | % 49 | 10.8 km/h | 3% |
| 19 September 2026 Sat | Sunny |
13.5 ° C | 22.8 ° C | 17.1 ° C | % 65 | 16.6 km/h | 8% |
| 20 September 2026 Sun | Overcast |
12.6 ° C | 19.5 ° C | 15.5 ° C | % 67 | 9 km/h | 14% |
| 21 September 2026 Mon | Overcast |
12 ° C | 20.3 ° C | 15.6 ° C | % 65 | 12.6 km/h | 10% |
| 22 September 2026 Tue | Sunny |
11.4 ° C | 21.8 ° C | 16 ° C | % 66 | 6.5 km/h | 7% |
| 23 September 2026 Wed | Overcast |
11.6 ° C | 19.1 ° C | 14.8 ° C | % 56 | 13.7 km/h | 12% |
| 24 September 2026 Thu | Patchy rain nearby |
10.3 ° C | 15.1 ° C | 12.4 ° C | % 72 | 9 km/h | 69% |
| 25 September 2026 Fri | Overcast |
8.2 ° C | 19.7 ° C | 13.8 ° C | % 66 | 13.7 km/h | 40% |
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