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San Mateo, California Weather:
Friday, October 31, 2025
Cloudy Weather
Day 66°
Night 48°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 11

Weather Forecast History

Last Year's Weather on This Day (October 31, 2024)

Cloudy Weather

Day

66°

Night

48°

Wind

8 mph

UV Index

3

Precipitation

5