San Mateo, California Weather:
Wednesday, December 17, 2025
Cloudy Weather
Day 61°
Night 45°
Precipitation 20 %
Wind 5 mph
UV Index (0 - 11+) 2
Weather Forecast History
Last Year's Weather on This Day (December 17, 2024)
Partly Sunny with Showers

Day

59°

Night

43°

Wind

4 mph

UV Index

2

Precipitation

49 %