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
| 14 September 2026 Mon 13 ° C ( 55.4°F )  Patchy rain nearby |
Feels Like : 11.1 ° C / 52°F Humidity : % 89 Pressure : 1016 mb Wind Speed : 13 kmph / 8.1 miles from SSE 
Visibility : 10 km Precipitation (rainfall) : 0.01 mm Cloud (%) : 99 |
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 |
|---|---|---|---|---|---|---|---|
| 13 September 2026 Sun |  Light rain shower |
11 ° C | 13.4 ° C | 12.1 ° C | % 94 | 14.4 km/h | 92% |
| 14 September 2026 Mon | Patchy rain nearby |
11.1 ° C | 19.5 ° C | 14.4 ° C | % 74 | 12.6 km/h | 43% |
| 15 September 2026 Tue |  Overcast |
10.7 ° C | 19.4 ° C | 14.3 ° C | % 68 | 13.7 km/h | 11% |
| 16 September 2026 Wed |  Sunny |
11.5 ° C | 23.1 ° C | 16.7 ° C | % 63 | 14.4 km/h | 4% |
| 17 September 2026 Thu | Sunny |
12.6 ° C | 24.5 ° C | 18.2 ° C | % 59 | 8.6 km/h | 3% |
| 18 September 2026 Fri |  Smoky haze |
12.8 ° C | 24.2 ° C | 18 ° C | % 58 | 7.2 km/h | 3% |
| 19 September 2026 Sat | Sunny |
12.7 ° C | 23.8 ° C | 17.3 ° C | % 59 | 13 km/h | 4% |
| 20 September 2026 Sun | Sunny |
12.2 ° C | 23.8 ° C | 17.2 ° C | % 60 | 10.4 km/h | 5% |
| 21 September 2026 Mon | Sunny |
12.3 ° C | 22.9 ° C | 16.5 ° C | % 59 | 16.9 km/h | 7% |
| 22 September 2026 Tue | Overcast |
10.8 ° C | 19.8 ° C | 14.9 ° C | % 58 | 13.3 km/h | 8% |
| 23 September 2026 Wed | Sunny |
11.6 ° C | 24.2 ° C | 17.1 ° C | % 53 | 14 km/h | 2% |
| 24 September 2026 Thu | Sunny |
14.4 ° C | 28 ° C | 20.2 ° C | % 38 | 11.9 km/h | 2% |
| 25 September 2026 Fri | Overcast |
12.9 ° C | 18.3 ° C | 15.9 ° C | % 75 | 16.6 km/h | 65% |
| 26 September 2026 Sat | Overcast |
9.5 ° C | 16.8 ° C | 12.8 ° C | % 68 | 7.9 km/h | 43% |
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