| NWS Forecast for: Seattle-Tacoma International Airport WA Issued by: National Weather Service Seattle, WA Last Update: 11:26 pm PDT Aug 18, 2026 |  |
| Today: Cloudy through mid morning, then gradual clearing, with a high near 78. South southwest wind around 6 mph becoming northwest in the afternoon. Tonight: Partly cloudy, with a low around 58. North wind 3 to 7 mph. Thursday: Mostly sunny, with a high near 81. Calm wind becoming north northwest 5 to 8 mph in the afternoon. Thursday Night: Increasing clouds, with a low around 59. North wind 5 to 8 mph. Friday: Partly sunny, with a high near 80. North northwest wind 3 to 8 mph. Friday Night: Mostly cloudy, with a low around 58. Saturday: A 40 percent chance of rain. Mostly cloudy, with a high near 71. Saturday Night: Mostly cloudy, with a low around 57. Sunday: Partly sunny, with a high near 73. Sunday Night: Mostly clear, with a low around 56. Monday: Mostly sunny, with a high near 76. Monday Night: Partly cloudy, with a low around 57. Tuesday: Partly sunny, with a high near 75. | |
| Seattle-Tacoma International Airport WA 47.46°N 122.31°W (Elev. 400 ft) | |
Visit your local NWS office at: https://www.weather.gov/sew |
