Posted in Web Ontario, CA 10-Day Weather Forecast – The Weather Channel … February 13, 2020 Be prepared with the most accurate 10-day forecast for with highs, lows, chance of precipitation from The Weather Channel and Weather.com https://weather.com/weather/tenday/l/Ontario+CA?canonicalCityId=6991575bed48715686572df4384381430d2ae52dede92c4c92b3f131fcfd95a8