I-405 WA weather conditions near Seattle, Washington

Roadnow AI Agent Live Update

7 day weather forecast

• Overnight 2025-10-20, Chance Rain. A chance of rain before 3am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 49. South wind around 7 mph. Chance of precipitation is 30%.
• Monday 2025-10-20, Chance Rain. A chance of rain before 11am, then a chance of rain after 1pm. Partly sunny, with a high near 59. South southwest wind around 7 mph. Chance of precipitation is 30%.
• Monday Night 2025-10-20, Partly Cloudy. Partly cloudy, with a low around 44. Light southeast wind.
• Tuesday 2025-10-21, Mostly Sunny. Mostly sunny, with a high near 62. Calm wind becoming north around 5 mph in the afternoon.
• Tuesday Night 2025-10-21, Partly Cloudy. Partly cloudy, with a low around 44. Light and variable wind.
• Wednesday 2025-10-22, Chance Rain. A 40 percent chance of rain after 11am. Partly sunny, with a high near 64.
• Wednesday Night 2025-10-22, Rain. Rain. Low around 50. Chance of precipitation is 80%.
• Thursday 2025-10-23, Chance Rain. A chance of rain. Mostly cloudy, with a high near 63.
• Thursday Night 2025-10-23, Rain. Rain. Cloudy, with a low around 53.
• Friday 2025-10-24, Rain. Rain. Cloudy, with a high near 60.
• Friday Night 2025-10-24, Rain. Rain. Cloudy, with a low around 48.
• Saturday 2025-10-25, Rain. Rain. Cloudy, with a high near 55.
• Saturday Night 2025-10-25, Rain. Rain. Cloudy, with a low around 45.
• Sunday 2025-10-26, Rain. Rain. Cloudy, with a high near 54.