I-5 weather conditions near Portland, Oregon

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Clear 58°F 2025-09-20T08:00:00
• Today 2025-09-20, Sunny. Sunny, with a high near 80. Light and variable wind.
• Tonight 2025-09-20, Partly Cloudy then Rain Likely. Rain likely, mainly after 5am. Increasing clouds, with a low around 58. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
• Sunday 2025-09-21, Rain then Chance Rain. Rain, mainly before 9am. High near 69. West southwest wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
• Sunday Night 2025-09-21, Mostly Clear. Mostly clear, with a low around 51. Northwest wind around 5 mph becoming calm in the evening.
• Monday 2025-09-22, Sunny. Sunny, with a high near 74. Calm wind becoming north around 5 mph in the afternoon.
• Monday Night 2025-09-22, Clear. Clear, with a low around 53.
• Tuesday 2025-09-23, Sunny. Sunny, with a high near 83.
• Tuesday Night 2025-09-23, Mostly Clear. Mostly clear, with a low around 56.
• Wednesday 2025-09-24, Sunny. Sunny, with a high near 78.
• Wednesday Night 2025-09-24, Mostly Clear. Mostly clear, with a low around 53.
• Thursday 2025-09-25, Sunny. Sunny, with a high near 74.
• Thursday Night 2025-09-25, Mostly Clear. Mostly clear, with a low around 54.
• Friday 2025-09-26, Slight Chance Rain. A slight chance of rain. Mostly sunny, with a high near 74.