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San Francisco, California Weather:
Wednesday, January 21, 2026
Cloudy Weather
Day 63°
Night 48°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (January 21, 2025)
Cloudy Weather

Day

61°

Night

41°

Wind

4 mph

UV Index

3

Precipitation

0 %