5-day weather forecast for Ontario, Oregon
Today
40°
70°
Partly Sunny
Saturday
47°
75°
Mostly Cloudy
Sunday
49°
73°
Slight Chance Thunderstorms
Monday
48°
77°
Slight Chance Thunderstorms
Tuesday
51°
76°
Slight Chance Rain Showers
Click on a forecast to see the forecast trend for that day
Weather changeability for Ontario, Oregon
| Temperature | Last Month | Last Year |
|---|---|---|
| Average change in high temperature day-to-day | 4.3° | 4.3° |
| Average change in low temperature day-to-day | 6.6° | 6.0° |
| Precipitation | Last Month | Last Year |
|---|---|---|
| Chance of dry day after a precip day | 67% | 55% |
| Chance of precip day after a dry day | 7% | 14% |
Weather forecast accuracy for Ontario, Oregon
| The Weather Channel | 82.50% |
| Intellicast | 82.50% |
| NWS Digital Forecast | 77.78% |
| Weather Underground | 77.01% |
| AccuWeather | 73.89% |
| National Weather Service | 72.78% |
| CustomWeather | 72.22% |
| World Weather Online | 64.44% |
| Persistence | 56.39% |
| Intellicast | 71.76% |
| The Weather Channel | 71.60% |
| AccuWeather | 70.02% |
| National Weather Service | 69.31% |
| CustomWeather | 69.03% |
| NWS Digital Forecast | 68.49% |
| Persistence | 56.49% |
ForecastAdvisor Fact
56.3% of Weather Underground's low temperature forecasts for Ontario were within 3 degrees of actual temperatures last month.