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Sunnyvale, California Weather:
Saturday, January 31, 2026
Cloudy Weather
Day 70°
Night 50°
Precipitation 0 %
Wind 1 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (January 31, 2025)
Rainy Weather

Day

57°

Night

54°

Wind

8 mph

UV Index

1

Precipitation

94 %