| Point Forecast: 4 Miles S Clayton CA 37.87N 121.92W (Elev. 2818 ft) |
Last Update: 1:26 pm PDT Jul 15, 2025 |
 |
|
[show menu] |
| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (PDT) | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Temperature (°F) | 66 | 66 | 65 | 66 | 66 | 66 | 66 | 66 | 66 | 65 | 64 | 63 | 62 | 64 | 64 | 64 | 65 | 66 | 67 | 68 | 67 | 66 | 66 | 64 |
| Dewpoint (°F) | 42 | 41 | 41 | 41 | 41 | 40 | 40 | 40 | 42 | 41 | 40 | 40 | 39 | 40 | 42 | 44 | 47 | 48 | 48 | 49 | 44 | 44 | 43 | 42 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 8 | 8 | 9 | 10 | 10 | 11 | 11 | 11 | 11 | 11 |
| Wind Dir | SW | SW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SW | SW | SW | WSW | WSW | SW | WSW | WSW |
| Gust | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 20 | 20 | 18 | 21 | 22 | 22 | 22 | 22 | 22 | ||||
| Sky Cover (%) | 2 | 4 | 4 | 13 | 13 | 17 | 15 | 14 | 21 | 19 | 28 | 31 | 13 | 5 | 3 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 1 |
| Precipitation Potential (%) | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
| Relative Humidity (%) | 41 | 40 | 42 | 40 | 41 | 40 | 39 | 37 | 42 | 42 | 42 | 42 | 42 | 43 | 45 | 48 | 54 | 52 | 50 | 50 | 44 | 44 | 44 | 44 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (PDT) | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Temperature (°F) | 64 | 62 | 63 | 64 | 65 | 66 | 66 | 66 | 66 | 66 | 66 | 66 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 72 | 71 | 70 | 68 | 67 |
| Dewpoint (°F) | 42 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 39 | 39 | 40 | 42 | 44 | 46 | 47 | 48 | 48 | 48 | 47 | 45 | 44 | 42 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 10 | 10 | 10 | 11 | 11 | 11 |
| Wind Dir | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | W | W | W | W | W | W | W | W | W |
| Gust | 23 | 23 | 23 | 22 | 22 | 22 | 20 | 20 | 20 | 18 | 18 | 18 | 18 | 18 | 18 | 21 | 21 | 21 | ||||||
| Sky Cover (%) | 2 | 4 | 9 | 14 | 14 | 14 | 18 | 18 | 18 | 20 | 20 | 20 | 17 | 17 | 17 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 |
| Precipitation Potential (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 44 | 43 | 42 | 41 | 40 | 40 | 39 | 39 | 38 | 38 | 38 | 38 | 38 | 40 | 41 | 43 | 43 | 43 | 43 | 43 | 42 | 41 | 41 | 40 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| ||||||||||