| Point Forecast: San Dimas CA 34.11N 117.82W (Elev. 287 m) |
Last Update: 3:08 am PDT Jul 15, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (PDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°C) | 17 | 17 | 17 | 16 | 17 | 18 | 19 | 21 | 23 | 24 | 27 | 28 | 28 | 27 | 27 | 24 | 23 | 21 | 19 | 18 | 18 | 18 | 17 | 16 |
| Dewpoint (°C) | 15 | 16 | 16 | 15 | 16 | 16 | 16 | 17 | 18 | 17 | 18 | 18 | 17 | 16 | 16 | 14 | 14 | 14 | 14 | 14 | 16 | 15 | 14 | 14 |
| Heat Index (°C) | 24 | 28 | 29 | 28 | 28 | 27 | 24 | |||||||||||||||||
| Surface Wind (mph) | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 7 | 7 | 7 | 5 | 5 | 5 | 3 |
| Wind Dir | W | W | WSW | WSW | WSW | SSW | SSW | SSW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 5 | 5 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 95 | 99 | 100 | 100 | 100 | 98 | 89 | 82 | 77 | 67 | 63 | 59 | 55 | 54 | 55 | 58 | 62 | 71 | 77 | 83 | 89 | 91 | 92 | 95 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (PDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°C) | 16 | 16 | 16 | 15 | 16 | 17 | 18 | 21 | 23 | 25 | 26 | 28 | 28 | 27 | 26 | 24 | 23 | 22 | 21 | 20 | 19 | 19 | 18 | 18 |
| Dewpoint (°C) | 14 | 14 | 14 | 14 | 14 | 16 | 16 | 17 | 17 | 18 | 17 | 17 | 17 | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 16 | 17 | 17 | 16 |
| Heat Index (°C) | 25 | 26 | 28 | 28 | 27 | 26 | 24 | |||||||||||||||||
| Surface Wind (mph) | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 5 | 5 | 9 | 9 | 9 | 9 | 9 | 9 | 7 | 7 | 7 | 3 | 3 | 3 | 2 |
| Wind Dir | W | W | WSW | WSW | WSW | SSW | SSW | SSW | SW | SW | SW | WSW | WSW | WSW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 5 | 5 | 5 | 5 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 96 | 97 | 100 | 100 | 99 | 99 | 94 | 85 | 77 | 70 | 63 | 58 | 55 | 55 | 57 | 59 | 64 | 69 | 77 | 84 | 90 | 94 | 96 | 97 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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