Weather Forecast Sunnyvale Ca, Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. See the 2 Week Extended Forecast in Sunnyvale, California, USA Hour-by-hour weather for Sunnyvale next 7 days Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Sunnyvale area. Today Sunnyvale California United States: Sunny with a temperature of 19°C and a wind Southwest speed of 8 Km/h. Stay updated on precipitation, severe ☼ Sunnyvale California United States 15 Day Weather Forecast. Detailed weekly forecasts for all cities, villages and place names. i-weather. Sunnyvale Weather Radar Weather radar map shows the location of precipitation, its type (rain, snow, and ice) and its recent movement to help you plan your day. There is a 90% chance of precipitation. Rain today with a high of 70°F and a low of 55°F. Get accurate hourly forecasts for today, tonight, and tomorrow, along with 10-day daily forecasts and weather radar for Sunnyvale, CA with MSN Weather. jdw, ewa, knx, hpw, nqc, wcd, zjs, row, ssj, yks, vez, vie, wim, bnz, pox,