ForecastSunnyvale, CAHeat risk todayHeat risk today in Sunnyvale, CAUV index tomorrow?Will it rain today?Is it too cold outside tomorrow?UV index today?Do I need a hoodie tomorrow?Can I wear shorts tomorrow?Rain forecast today?Rain forecast tomorrow?Can I wear a t-shirt today?When is UV highest today?Can I wear a t-shirt tomorrow?Do I need sunscreen tomorrow?Do I need a coat tomorrow?Is it hoodie weather?Do I need a jacket today?Do I need an umbrella tomorrow?Is it too hot outside tomorrow?Do I need a jacket tomorrow?Do I need a hoodie today?Do I need a coat today?Can I wear shorts today?When is UV highest tomorrow?Heat risk tomorrow?Is it sweater weather?Is it too cold outside today?Is it too hot outside today?What to wear tomorrow?What to wear today?Do I need sunscreen today?Will it rain tomorrow?Do I need an umbrella today?Heat StrokeSafeHeat risk is low.TodayTomorrowExtreme dangerDangerExtreme cautionCautionSafe9PM12AM3AM6AMSafe