5-day weather forecast for Diamond Bar, California
Today
41°
72°
Partly sunny
Sunday
42°
72°
Partly sunny
Monday
39°
73°
Partly sunny
Tuesday
40°
66°
Chance Rain
Showers
Showers
Wednesday
38°
73°
Mostly 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 | 75.86% | 59.77% | 89.66% | 89.66% | 78.74% |
| Weather Underground | 71.26% | 51.72% | 90.80% | 90.80% | 76.15% |
| Intellicast | 78.16% | 40.23% | 93.10% | 93.10% | 76.15% |
| AccuWeather | 65.33% | 31.94% | 94.67% | 93.33% | 71.32% |
| CustomWeather | 68.97% | 29.89% | 91.95% | 91.95% | 70.69% |
| The Weather Channel | 66.67% | 24.14% | 93.10% | 93.10% | 69.25% |
| Persistence | 44.09% | 36.56% | 89.25% | 89.25% | 64.78% |
| World Weather Online | 34.48% | 33.33% | 94.25% | 94.25% | 64.08% |
| National Weather Service | 63.10% | 13.10% | 89.29% | 88.10% | 63.39% |
| Provider | High Temp | Low Temp | Icon Precip | Text Precip | Overall |
|---|---|---|---|---|---|
| Intellicast | 72.16% | 52.02% | 96.34% | 96.34% | 79.21% |
| AccuWeather | 59.79% | 60.83% | 95.42% | 93.75% | 77.45% |
| NWS Digital Forecast | 70.36% | 55.39% | 91.42% | 91.22% | 77.10% |
| CustomWeather | 55.97% | 58.19% | 94.99% | 94.99% | 76.04% |
| The Weather Channel | 57.71% | 44.22% | 96.15% | 96.15% | 73.55% |
| National Weather Service | 62.63% | 35.34% | 92.87% | 89.92% | 70.19% |
| Persistence | 33.99% | 44.61% | 88.04% | 88.04% | 63.67% |
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