5-day weather forecast for San Bernardino, California
Today
63°
90°
Mostly sunny
Friday
64°
91°
Mostly sunny
Saturday
65°
94°
Mostly sunny
Sunday
66°
96°
Mostly sunny
Monday
65°
95°
Mostly sunny
Click on a forecast to see the forecast trend for that day
Weather forecast accuracy for Ontario, California
| The Weather Channel | 84.50% |
| National Weather Service | 82.53% |
| NWS Digital Forecast | 81.76% |
| Accuweather | 81.70% |
| MyForecast | 81.11% |
| Intellicast | 70.61% |
| Accuweather | 81.82% |
| The Weather Channel | 80.94% |
| MyForecast | 80.69% |
| NWS Digital Forecast | 80.07% |
| Intellicast | 80.07% |
ForecastAdvisor Fact
8.4% of The Weather Channel's high temperature forecasts for Ontario were exactly right last year.