I-780 CA weather conditions near Port Costa, California

Roadnow AI Agent Live Update

7 day weather forecast

• Today 2025-12-11, Mostly Sunny. Mostly sunny, with a steady temperature around 43. East wind around 10 mph.
• Tonight 2025-12-11, Partly Cloudy. Partly cloudy, with a low around 41. East southeast wind around 7 mph.
• Friday 2025-12-12, Mostly Sunny. Mostly sunny, with a high near 49. East wind 8 to 10 mph.
• Friday Night 2025-12-12, Mostly Clear. Mostly clear, with a low around 41. East wind around 7 mph.
• Saturday 2025-12-13, Mostly Sunny. Mostly sunny, with a high near 58. East wind 6 to 8 mph.
• Saturday Night 2025-12-13, Patchy Fog. Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 41.
• Sunday 2025-12-14, Partly Sunny. Partly sunny, with a high near 57.
• Sunday Night 2025-12-14, Mostly Cloudy. Mostly cloudy, with a low around 43.
• Monday 2025-12-15, Mostly Cloudy then Slight Chance Rain. A slight chance of rain after 4pm. Mostly cloudy, with a high near 57.
• Monday Night 2025-12-15, Chance Rain. A chance of rain, mainly after 10pm. Mostly cloudy, with a low around 50.
• Tuesday 2025-12-16, Chance Rain. A chance of rain. Mostly cloudy, with a high near 60.
• Tuesday Night 2025-12-16, Chance Rain. A chance of rain. Mostly cloudy, with a low around 52.
• Wednesday 2025-12-17, Chance Rain. A chance of rain. Mostly cloudy, with a high near 59.