| Point Forecast: 6 Miles SSW Discovery Bay CA 37.83N 121.62W (Elev. 11 m) |
Last Update: 2:26 am PDT Jul 15, 2026 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (PDT) | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 |
| Temperature (°C) | 23 | 25 | 27 | 31 | 32 | 34 | 35 | 36 | 37 | 37 | 36 | 35 | 33 | 29 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 19 | 19 | 18 |
| Dewpoint (°C) | 8 | 9 | 9 | 10 | 10 | 10 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 8 |
| Heat Index (°C) | 25 | 27 | 29 | 31 | 32 | 33 | 34 | 34 | 35 | 34 | 33 | 31 | 28 | 26 | 26 | 25 | 24 | |||||||
| Surface Wind (mph) | 9 | 9 | 10 | 11 | 11 | 13 | 14 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 16 | 17 | 17 | 17 | 18 | 20 | 18 | 18 |
| Wind Dir | WSW | WSW | WSW | WSW | W | WSW | WSW | WSW | WSW | WSW | W | WSW | WSW | WSW | SW | SW | WSW | SW | SW | WSW | SW | SW | WSW | WSW |
| Gust | 29 | 29 | 29 | 29 | 29 | 30 | 32 | 33 | 33 | |||||||||||||||
| Sky Cover (%) | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 |
| 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 (%) | 39 | 37 | 32 | 28 | 26 | 24 | 22 | 21 | 20 | 20 | 20 | 21 | 24 | 27 | 30 | 32 | 34 | 35 | 37 | 40 | 44 | 48 | 51 | 51 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (PDT) | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 |
| Temperature (°C) | 19 | 21 | 23 | 26 | 27 | 29 | 31 | 31 | 32 | 31 | 31 | 29 | 27 | 24 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 16 | 16 | 16 |
| Dewpoint (°C) | 9 | 10 | 9 | 11 | 11 | 11 | 11 | 10 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 |
| Heat Index (°C) | 26 | 27 | 28 | 29 | 29 | 30 | 29 | 29 | 28 | 27 | 24 | |||||||||||||
| Surface Wind (mph) | 18 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 11 | 11 |
| Wind Dir | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW |
| Gust | 33 | 29 | 29 | 29 | ||||||||||||||||||||
| Sky Cover (%) | 1 | 3 | 3 | 3 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 3 | 3 | 3 | 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 (%) | 51 | 50 | 44 | 39 | 35 | 32 | 29 | 27 | 27 | 27 | 28 | 29 | 33 | 38 | 43 | 46 | 50 | 53 | 56 | 59 | 63 | 67 | 69 | 71 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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