| Point Forecast: 6 Miles SSW Discovery Bay CA 37.83N 121.62W (Elev. 36 ft) |
Last Update: 2:06 pm PDT May 12, 2026 |
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| Date | 05/12 | 05/13 | ||||||||||||||||||||||
| Hour (PDT) | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Temperature (°F) | 82 | 79 | 76 | 68 | 66 | 64 | 63 | 62 | 62 | 62 | 60 | 59 | 58 | 57 | 59 | 61 | 64 | 69 | 71 | 74 | 76 | 77 | 79 | 78 |
| Dewpoint (°F) | 50 | 51 | 51 | 48 | 46 | 46 | 46 | 47 | 49 | 50 | 50 | 50 | 51 | 50 | 51 | 52 | 51 | 50 | 49 | 49 | 49 | 48 | 49 | 48 |
| Heat Index (°F) | 81 | 79 | 76 | 76 | 77 | 79 | 78 | |||||||||||||||||
| Surface Wind (mph) | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 18 | 17 | 17 | 15 | 14 | 13 | 13 | 13 | 13 |
| Wind Dir | W | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW |
| Gust | 28 | 28 | 29 | 30 | 30 | 30 | 29 | 30 | 31 | 31 | 32 | 31 | 30 | 32 | 32 | 32 | 31 | 30 | 26 | 24 | 22 | 22 | 21 | 22 |
| Sky Cover (%) | 21 | 34 | 29 | 27 | 32 | 30 | 30 | 29 | 36 | 38 | 15 | 4 | 10 | 10 | 9 | 12 | 7 | 8 | 5 | 5 | 3 | 3 | 4 | 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 (%) | 33 | 38 | 42 | 48 | 50 | 52 | 54 | 58 | 61 | 64 | 68 | 74 | 78 | 78 | 73 | 72 | 62 | 52 | 45 | 41 | 38 | 36 | 35 | 34 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/14 | |||||||||||||||||||||||
| Hour (PDT) | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Temperature (°F) | 78 | 77 | 73 | 69 | 66 | 63 | 62 | 60 | 59 | 58 | 57 | 56 | 55 | 56 | 58 | 62 | 68 | 75 | 81 | 84 | 87 | 88 | 89 | 89 |
| Dewpoint (°F) | 48 | 49 | 48 | 48 | 47 | 48 | 48 | 48 | 48 | 47 | 48 | 48 | 48 | 48 | 47 | 47 | 48 | 48 | 48 | 47 | 47 | 47 | 46 | 46 |
| Heat Index (°F) | 78 | 77 | 75 | 80 | 82 | 84 | 85 | 86 | 85 | |||||||||||||||
| Surface Wind (mph) | 13 | 13 | 13 | 11 | 11 | 11 | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 9 |
| Wind Dir | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | W | W | W | NW | NW | NW | WNW | WNW | WNW |
| Gust | 24 | 24 | 24 | 23 | 23 | 23 | ||||||||||||||||||
| Sky Cover (%) | 4 | 4 | 4 | 4 | 4 | 4 | 9 | 9 | 9 | 21 | 21 | 21 | 23 | 23 | 23 | 6 | 6 | 6 | 1 | 1 | 1 | 2 | 2 | 2 |
| 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 (%) | 35 | 38 | 41 | 48 | 52 | 56 | 60 | 64 | 66 | 69 | 71 | 74 | 76 | 74 | 67 | 58 | 48 | 39 | 32 | 27 | 25 | 24 | 23 | 23 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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