Sunnyvale, California Weather:
Tuesday, March 31, 2026
Cloudy Weather
Day 64°
Night 48°
Precipitation 20 %
Wind 2 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (March 31, 2025)
Rainy Weather

Day

64°

Night

46°

Wind

12 mph

UV Index

6

Precipitation

96 %