Wednesday
Becoming sunny
High:
80°F
Partly sunny, then gradually becoming sunny, with a high near 80. Calm wind becoming north northwest 5 to 9 mph in the afternoon.
Sunnyvale, CA Weather - Tomorrow’s Forecast
Wednesday Night
Clouds increasing
Overnight low:
59°F
Increasing clouds, with a low around 59. Northwest wind 5 to 7 mph becoming calm in the evening.