Current weather in Ontario and forecast for today, tomorrow, and next 14 days Get the monthly weather forecast for Ontario, CA, including daily high/low, historical averages, to help you plan ahead. Interactive weather map allows you to pan and zoom to get unmatched weather details in your local neighborhood or half a world away from The Weather Channel and Weather.com ... Ontario, CA … Be prepared with the most accurate 10-day forecast for Ontario, CA with highs, lows, chance of precipitation from The Weather Channel and Weather.com Cold spot in Ontario: -23.4 °C-10.1 °F Kapuskasing AAFC Hot spot in Canada : 10.7 ° C 51.3 ° F Halifax Stanfield Int'l Airport, NS Cold spot in Canada : -41.6 ° C -42.9 ° F Shepherd Bay Airport, NU °F. Everything you need to be ready to step out prepared. Hi/Low, RealFeel®, precip, radar, & everything you need to be ready for the day, commute, and weekend! Weather conditions with updates on temperature, humidity, wind speed, snow, pressure, etc. Find the most current and reliable 14 day weather forecasts, storm alerts, reports and information for Ontario, CA, US with The Weather Network. Get the forecast for today, tonight & tomorrow's weather for Ontario, CA. Last 2 weeks of weather Find the most current and reliable 7 day weather forecasts, storm alerts, reports and information for [city] with The Weather Network. Ontario, CA - Weather forecast from Theweather.com. Current conditions at Cable Airport (KCCB) Lat: 34.11161°NLon: 117.68739°WElev: 1444ft. for Ontario, California Get the Ontario, CA local hourly forecast including temperature, RealFeel, and chance of precipitation. Ontario Extended Forecast with high and low temperatures. Find the most current and reliable 7 day weather forecasts, storm alerts, reports and information for [city] with The Weather Network.