| Point Forecast: 4 Miles S Clayton CA 37.87N 121.92W (Elev. 2818 ft) |
Last Update: 1:27 pm PDT Jul 13, 2025 |
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| Date | 07/13 | 07/14 | ||||||||||||||||||||||
| Hour (PDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°F) | 76 | 78 | 76 | 77 | 76 | 74 | 72 | 71 | 71 | 71 | 71 | 70 | 70 | 70 | 69 | 68 | 70 | 71 | 73 | 76 | 76 | 76 | 77 | 77 |
| Dewpoint (°F) | 49 | 49 | 44 | 44 | 43 | 41 | 40 | 39 | 39 | 38 | 39 | 37 | 36 | 36 | 37 | 35 | 37 | 38 | 40 | 42 | 42 | 44 | 48 | 48 |
| Heat Index (°F) | 76 | 78 | 76 | 77 | 76 | 76 | 76 | 76 | 77 | 77 | ||||||||||||||
| Surface Wind (mph) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 7 | 7 | 9 |
| Wind Dir | SW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | SW | SW | WSW | SW | SW | WSW | SW | WSW | WSW | WSW | WSW | SW | WSW | WSW |
| Gust | 20 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 18 | 18 | 18 | 18 | 18 | |||||||||
| Sky Cover (%) | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 2 | 1 | 2 | 2 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 3 | 1 | 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 (%) | 38 | 36 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 30 | 31 | 30 | 30 | 28 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 32 | 35 | 35 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/15 | |||||||||||||||||||||||
| Hour (PDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°F) | 78 | 79 | 78 | 77 | 76 | 72 | 70 | 69 | 69 | 69 | 69 | 68 | 68 | 67 | 66 | 66 | 66 | 67 | 68 | 69 | 69 | 70 | 71 | 72 |
| Dewpoint (°F) | 46 | 47 | 46 | 45 | 44 | 42 | 40 | 40 | 39 | 38 | 38 | 37 | 37 | 38 | 39 | 40 | 41 | 42 | 42 | 43 | 44 | 44 | 46 | 48 |
| Heat Index (°F) | 78 | 79 | 78 | 77 | 76 | |||||||||||||||||||
| Surface Wind (mph) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Wind Dir | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | WSW | WSW | WSW | WSW | WSW | WSW |
| Gust | 20 | 21 | 21 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 |
| Sky Cover (%) | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 3 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 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 (%) | 32 | 32 | 33 | 32 | 32 | 33 | 33 | 34 | 33 | 32 | 32 | 32 | 32 | 34 | 37 | 39 | 40 | 39 | 39 | 39 | 40 | 40 | 41 | 42 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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