| Point Forecast: 2 Miles W Castro Valley CA 37.71N 122.08W (Elev. 397 ft) |
Last Update: 7:58 pm PDT May 4, 2024 |
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| Date | 05/04 | 05/05 | ||||||||||||||||||||||
| Hour (PDT) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 48 | 48 | 48 | 48 | 47 | 46 | 46 | 46 | 45 | 46 | 46 | 48 | 50 | 52 | 55 | 57 | 58 | 58 | 60 | 59 | 58 | 57 | 54 | 52 |
| Dewpoint (°F) | 42 | 43 | 43 | 43 | 43 | 42 | 42 | 41 | 41 | 42 | 42 | 42 | 42 | 42 | 41 | 42 | 42 | 42 | 43 | 42 | 43 | 43 | 42 | 42 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 9 | 7 | 10 | 7 | 8 | 7 | 6 | 5 | 7 | 7 | 5 | 9 | 9 | 9 | 9 | 10 | 10 | 11 | 11 | 11 | 13 | 11 | 9 | 8 |
| Wind Dir | W | W | W | W | WSW | W | WSW | WSW | W | W | W | WNW | WNW | NW | WNW | W | W | W | W | W | W | W | W | W |
| Gust | 22 | 20 | 20 | 18 | 18 | |||||||||||||||||||
| Sky Cover (%) | 22 | 70 | 84 | 57 | 80 | 33 | 30 | 80 | 19 | 19 | 5 | 7 | 21 | 12 | 11 | 20 | 20 | 18 | 13 | 3 | 4 | 3 | 1 | 9 |
| Precipitation Potential (%) | 7 | 9 | 15 | 35 | 19 | 11 | 11 | 11 | 5 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 80 | 80 | 83 | 83 | 84 | 86 | 84 | 83 | 84 | 86 | 84 | 79 | 73 | 67 | 59 | 57 | 54 | 54 | 53 | 54 | 57 | 59 | 64 | 69 |
| Rain | -- | -- | SChc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/06 | |||||||||||||||||||||||
| Hour (PDT) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 50 | 49 | 49 | 48 | 48 | 47 | 46 | 46 | 46 | 47 | 48 | 50 | 52 | 55 | 58 | 60 | 61 | 62 | 63 | 63 | 62 | 60 | 58 | 56 |
| Dewpoint (°F) | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 44 | 44 | 45 | 45 | 45 | 46 | 47 | 48 | 48 | 49 | 49 | 50 | 50 | 50 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 6 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 6 | 6 | 6 | 8 | 8 | 8 | 11 | 11 | 11 | 14 | 14 | 14 | 11 |
| Wind Dir | W | WSW | SW | SW | SW | SSW | SSW | SSW | SSW | SSW | SSW | WSW | WSW | WSW | W | W | W | W | W | W | W | W | W | W |
| Gust | 21 | 21 | 21 | 18 | ||||||||||||||||||||
| Sky Cover (%) | 3 | 10 | 17 | 17 | 17 | 4 | 4 | 4 | 5 | 5 | 5 | 13 | 13 | 13 | 12 | 12 | 12 | 27 | 27 | 27 | 16 | 16 | 16 | 25 |
| 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 (%) | 77 | 80 | 80 | 82 | 83 | 85 | 87 | 88 | 89 | 88 | 85 | 81 | 75 | 69 | 63 | 60 | 59 | 58 | 59 | 61 | 64 | 69 | 75 | 80 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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