5-day weather forecast for Diamond Bar, California
Today
59°
103°
Hot
Friday
61°
102°
Hot
Saturday
59°
104°
Hot
Sunday
56°
94°
Sunny
Monday
54°
87°
Sunny
Click on a forecast to see the forecast trend for that day
Weather forecast accuracy details for Chino Hills, California
These are the one- to three-day out accuracy percentages for high temperature, low temperature, icon
forecast precipitation (both rain and snow), and text forecast precipitation (both rain and snow). Temperature accuracy
is the percentage of forecasts within three degrees. Precipitation accuracy is the percentage of correct forecasts.
The forecasts are collected in the evening.
Click on the headers to sort by that column.
| Provider | High Temp | Low Temp | Icon Precip | Text Precip | Overall |
|---|---|---|---|---|---|
| NWS Digital Forecast | 64.52% | 70.00% | 100.00% | 100.00% | 83.63% |
| The Weather Channel | 61.29% | 66.67% | 100.00% | 100.00% | 81.99% |
| AccuWeather | 51.61% | 61.11% | 100.00% | 100.00% | 78.18% |
| Intellicast | 58.06% | 54.44% | 100.00% | 100.00% | 78.13% |
| CustomWeather | 50.54% | 60.22% | 100.00% | 100.00% | 77.69% |
| National Weather Service | 50.00% | 66.67% | 100.00% | 92.22% | 77.22% |
| Provider | High Temp | Low Temp | Icon Precip | Text Precip | Overall |
|---|---|---|---|---|---|
| CustomWeather | 62.52% | 61.58% | 94.73% | 94.73% | 78.39% |
| Intellicast | 69.48% | 53.05% | 94.65% | 94.65% | 77.96% |
| NWS Digital Forecast | 70.89% | 53.32% | 90.87% | 90.78% | 76.47% |
| AccuWeather | 65.35% | 52.11% | 93.99% | 92.30% | 75.94% |
| The Weather Channel | 56.13% | 44.25% | 94.78% | 94.78% | 72.48% |
| National Weather Service | 57.80% | 38.79% | 90.06% | 86.26% | 68.23% |
If you are interested in this data, you might be interested in the incredible amount of data that
ForecastWatch can provide. Whatever accuracy or skill data, reporting,
or comparisons you need to make better decisions, we can help.
Please contact us with your needs. We would love to help!