I-90 weather conditions near Mercer Island, Washington

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Partly Cloudy 63°F 2025-06-19T22:00:00
• Tonight 2025-06-19, Mostly Cloudy then Slight Chance Rain. A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 52. Calm wind becoming south southeast around 5 mph after midnight.
• Friday 2025-06-20, Chance Rain then Rain. Rain, mainly after 3pm. High near 60. South wind around 5 mph becoming west in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
• Friday Night 2025-06-20, Rain. Rain. Low around 52. Calm wind becoming south 5 to 7 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
• Saturday 2025-06-21, Rain then Chance Rain. Rain, mainly before 11am. High near 62. South wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
• Saturday Night 2025-06-21, Chance Rain. A 40 percent chance of rain. Mostly cloudy, with a low around 54. South wind 3 to 5 mph.
• Sunday 2025-06-22, Chance Rain. A 30 percent chance of rain, mainly before 11am. Partly sunny, with a high near 71.
• Sunday Night 2025-06-22, Partly Cloudy. Partly cloudy, with a low around 55.
• Monday 2025-06-23, Sunny. Sunny, with a high near 76.
• Monday Night 2025-06-23, Mostly Clear. Mostly clear, with a low around 57.
• Tuesday 2025-06-24, Sunny. Sunny, with a high near 81.
• Tuesday Night 2025-06-24, Partly Cloudy. Partly cloudy, with a low around 58.
• Wednesday 2025-06-25, Partly Sunny. Partly sunny, with a high near 77.
• Wednesday Night 2025-06-25, Mostly Cloudy. Mostly cloudy, with a low around 57.
• Thursday 2025-06-26, Slight Chance Rain. A slight chance of rain. Partly sunny, with a high near 70.