I-280 CA weather conditions near San Mateo, California

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Mostly Cloudy 62°F 2025-09-21T04:00:00
• Today 2025-09-21, Becoming Sunny. Partly sunny, then gradually becoming sunny, with a high near 80. Light west wind increasing to 5 to 10 mph in the morning.
• Tonight 2025-09-21, Clear. Clear, with a low around 59. West wind 5 to 7 mph becoming calm after midnight.
• Monday 2025-09-22, Sunny. Sunny, with a high near 84. Calm wind becoming west northwest around 6 mph in the afternoon.
• Monday Night 2025-09-22, Clear. Clear, with a low around 60. West northwest wind 5 to 9 mph becoming calm in the evening.
• Tuesday 2025-09-23, Sunny. Sunny, with a high near 89. Calm wind becoming west northwest around 6 mph in the afternoon.
• Tuesday Night 2025-09-23, Chance Showers. A 30 percent chance of showers, mainly after 11pm. Partly cloudy, with a low around 62.
• Wednesday 2025-09-24, Chance Showers. A 30 percent chance of showers, mainly before 11am. Mostly sunny, with a high near 82.
• Wednesday Night 2025-09-24, Partly Cloudy. Partly cloudy, with a low around 60.
• Thursday 2025-09-25, Mostly Sunny. Mostly sunny, with a high near 80.
• Thursday Night 2025-09-25, Mostly Clear. Mostly clear, with a low around 59.
• Friday 2025-09-26, Mostly Sunny. Mostly sunny, with a high near 78.
• Friday Night 2025-09-26, Mostly Clear. Mostly clear, with a low around 58.
• Saturday 2025-09-27, Mostly Sunny. Mostly sunny, with a high near 78.