I-680 CA weather conditions near San Mateo, California
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Clear 59°F 2025-09-15T03:30:00 
Overnight 2025-09-15, Mostly Clear. Mostly clear, with a low around 59. Calm wind.
Monday 2025-09-15, Sunny. Sunny, with a high near 92. Calm wind becoming northwest 5 to 9 mph in the afternoon.- Monday Night 2025-09-15, Clear. Clear, with a low around 61. West wind around 6 mph becoming calm in the evening.
- Tuesday 2025-09-16, Sunny. Sunny, with a high near 92. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
- Tuesday Night 2025-09-16, Clear. Clear, with a low around 60. West wind 5 to 10 mph becoming light in the evening.
- Wednesday 2025-09-17, Sunny. Sunny, with a high near 85.
Wednesday Night 2025-09-17, Partly Cloudy. Partly cloudy, with a low around 61.
Thursday 2025-09-18, Slight Chance Showers. A slight chance of showers. Partly sunny, with a high near 79.
Thursday Night 2025-09-18, Chance Showers. A slight chance of showers, then a chance of showers and thunderstorms after 11pm. Mostly cloudy, with a low around 62.
Friday 2025-09-19, Slight Chance Showers. A slight chance of showers. Mostly sunny, with a high near 80.
Friday Night 2025-09-19, Slight Chance Showers. A slight chance of showers. Partly cloudy, with a low around 61.Saturday 2025-09-20, Slight Chance Showers then Sunny. A slight chance of showers. Mostly sunny, with a high near 80.
- Saturday Night 2025-09-20, Mostly Clear. Mostly clear, with a low around 60.
Sunday 2025-09-21, Mostly Sunny. Mostly sunny, with a high near 79.