Ontario, CA 10-Day Weather Forecast
10-Day Temperature Forecast
Daily Precipitation Outlook
10-day outlook for Ontario, CA: today partially cloudy, high 88°F, low 66°F with a 0% rain chance. Tomorrow: high 85°F.
| Today's High | 88°F |
| Today's Low | 66°F |
| Rain Chance | 0% |
| Conditions | Partially cloudy |
| Tomorrow's High | 85°F |
| Tomorrow's Low | 55°F |
10-Day Temperature Outlook for Ontario, CA
The full 10-day forecast table below shows daily high and low temperatures, precipitation probability, and weather conditions for each day in Ontario, CA. Today reaches a high of 88°F with partially cloudy and a 0% rain chance. Tomorrow's high is 85°F with a 0% chance of rain.
How to Use the 10-Day Forecast
Long-range forecasts become less precise beyond 5–7 days but remain useful for planning outdoor events and travel in Ontario, CA. The daily rain probability is expressed as a percentage — days above 50% have a more-likely-than-not chance of measurable precipitation. Days below 20% are typically dry.
For a closer look at today's weather hour by hour, see the Ontario hourly forecast. For tomorrow's specific rain timing, the rain tomorrow page shows the hourly precipitation breakdown.
10-Day Forecast for Ontario, CA
| Day | High | Low | Rain | Conditions |
|---|---|---|---|---|
| Sat, Apr 4 | 88°F | 66°F | 0% | Partially cloudy |
| Sun, Apr 5 | 85°F | 55°F | 0% | Clear |
| Mon, Apr 6 | 79°F | 57°F | 0% | Partially cloudy |
| Tue, Apr 7 | 79°F | 55°F | 0% | Clear |
| Wed, Apr 8 | 79°F | 57°F | 0% | Clear |
| Thu, Apr 9 | 74°F | 59°F | 9% | Partially cloudy |
| Fri, Apr 10 | 71°F | 57°F | 26% | Partially cloudy |
| Sat, Apr 11 | 68°F | 56°F | 22% | Partially cloudy |
| Sun, Apr 12 | 63°F | 50°F | 16% | Partially cloudy |
| Mon, Apr 13 | 58°F | 48°F | 13% | Partially cloudy |
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