I-280 CA weather conditions near South San Francisco, California

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Mostly Cloudy 61°F 2025-09-21T08:15:00
• Today 2025-09-21, Decreasing Clouds. Mostly cloudy, then gradually becoming sunny, with a high near 68. West wind 7 to 14 mph, with gusts as high as 20 mph.
• Tonight 2025-09-21, Mostly Clear. Mostly clear, with a low around 57. West wind 6 to 13 mph, with gusts as high as 18 mph.
• Monday 2025-09-22, Sunny. Sunny, with a high near 72. Light west wind increasing to 5 to 10 mph in the afternoon.
• Monday Night 2025-09-22, Mostly Clear. Mostly clear, with a low around 58. West wind 9 to 14 mph becoming light west southwest after midnight. Winds could gust as high as 18 mph.
• Tuesday 2025-09-23, Sunny. Sunny, with a high near 77. Light and variable wind becoming west 5 to 9 mph in the morning.
• Tuesday Night 2025-09-23, Chance Showers. A 30 percent chance of showers, mainly after 11pm. Partly cloudy, with a low around 60.
• Wednesday 2025-09-24, Chance Showers. A 30 percent chance of showers, mainly before 11am. Mostly sunny, with a high near 72.
• Wednesday Night 2025-09-24, Partly Cloudy. Partly cloudy, with a low around 59.
• Thursday 2025-09-25, Mostly Sunny. Mostly sunny, with a high near 68.
• Thursday Night 2025-09-25, Partly Cloudy. Partly cloudy, with a low around 58.
• Friday 2025-09-26, Mostly Sunny. Mostly sunny, with a high near 67.
• Friday Night 2025-09-26, Partly Cloudy. Partly cloudy, with a low around 57.
• Saturday 2025-09-27, Mostly Sunny. Mostly sunny, with a high near 67.