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
| 18 December 2025 Thu 7.8 ° C ( 46°F )  Overcast |
Feels Like : 4.1 ° C / 39.4°F Humidity : % 76 Pressure : 1017 mb Wind Speed : 24.8 kmph / 15.4 miles from SW 
Visibility : 16 km Precipitation (rainfall) : 0 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 |
|---|---|---|---|---|---|---|---|
| 17 December 2025 Wed |  Moderate rain |
4 ° C | 9.6 ° C | 6.6 ° C | % 83 | 35.3 km/h | 90% |
| 18 December 2025 Thu | Moderate rain |
4.6 ° C | 9.7 ° C | 6.1 ° C | % 89 | 24.1 km/h | 81% |
| 19 December 2025 Fri |  Patchy rain nearby |
3.2 ° C | 5.8 ° C | 3.9 ° C | % 87 | 23.4 km/h | 86% |
| 20 December 2025 Sat | Patchy rain nearby |
3.5 ° C | 6.3 ° C | 5 ° C | % 86 | 19.1 km/h | 87% |
| 21 December 2025 Sun | Patchy rain nearby |
2.6 ° C | 9.8 ° C | 5.6 ° C | % 82 | 24.1 km/h | 84% |
| 22 December 2025 Mon | Patchy rain nearby |
5.6 ° C | 7.5 ° C | 6.4 ° C | % 86 | 21.2 km/h | 89% |
| 23 December 2025 Tue | Patchy rain nearby |
4.4 ° C | 5.4 ° C | 4.8 ° C | % 87 | 14.4 km/h | 89% |
| 24 December 2025 Wed | Patchy rain nearby |
2.2 ° C | 5.5 ° C | 4 ° C | % 86 | 7.2 km/h | 82% |
| 25 December 2025 Thu |  Partly Cloudy |
1.4 ° C | 6 ° C | 3.1 ° C | % 70 | 6.1 km/h | 0% |
| 26 December 2025 Fri | Patchy rain nearby |
2.4 ° C | 8 ° C | 4.3 ° C | % 66 | 7.9 km/h | 83% |
| 27 December 2025 Sat | Patchy rain nearby |
2.7 ° C | 4 ° C | 3.6 ° C | % 91 | 17.6 km/h | 88% |
| 28 December 2025 Sun | Moderate rain |
2.8 ° C | 5.5 ° C | 4.1 ° C | % 85 | 19.4 km/h | 88% |
| 29 December 2025 Mon | Patchy rain nearby |
3.2 ° C | 4.6 ° C | 3.8 ° C | % 87 | 18.4 km/h | 81% |
| 30 December 2025 Tue | Patchy rain nearby |
0.3 ° C | 5.5 ° C | 2.2 ° C | % 78 | 6.5 km/h | 65% |
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