Hourly Weather Forecast - Portola Valley, CA

70% Chance of Light Rain

60% Chance of Light Rain

60% Chance of Light Rain

60% Chance of Light Rain

60% Chance of Light Rain

70% Chance of Light Rain

70% Chance of Light Rain

70% Chance of Light Rain

70% Chance Rain Showers

70% Chance Rain Showers

70% Chance Rain Showers

70% Chance of Light Rain

80% Chance of Rain

80% Chance of Rain

80% Chance of Rain

80% Chance of Rain

70% Chance of Rain

60% Chance of Rain

50% Chance of Rain

40% Chance of Rain

30% Chance of Rain

30% Chance of Rain

Cloudy