| Point Forecast: 2 Miles NW Brentwood CA 37.95N 121.71W (Elev. 25 m) |
Last Update: 2:16 am PDT Sep 14, 2026 |
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| Date | 09/14 | 09/15 | ||||||||||||||||||||||
| Hour (PDT) | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Temperature (°C) | 17 | 19 | 23 | 26 | 28 | 29 | 31 | 32 | 32 | 31 | 31 | 28 | 25 | 23 | 22 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 14 | 14 |
| Dewpoint (°C) | 9 | 8 | 7 | 6 | 7 | 7 | 6 | 6 | 6 | 7 | 7 | 6 | 6 | 6 | 7 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 |
| Heat Index (°C) | 26 | 27 | 28 | 29 | 29 | 29 | 29 | 28 | 27 | 25 | ||||||||||||||
| Surface Wind (mph) | 6 | 7 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 9 | 6 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 2 |
| Wind Dir | W | NW | NW | NW | NW | NW | WNW | WNW | WNW | W | W | WSW | WSW | SW | WSW | SW | SW | SW | S | SW | S | SSW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 8 | 9 | 10 | 4 | 1 | 1 | 5 | 2 | 2 | 6 | 9 | 11 | 5 | 21 | 16 | 2 | 3 | 2 | 1 | 7 | 7 | 9 | 8 | 9 |
| 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 (%) | 58 | 47 | 34 | 28 | 28 | 25 | 22 | 20 | 20 | 21 | 22 | 24 | 30 | 34 | 40 | 46 | 51 | 57 | 62 | 68 | 73 | 76 | 76 | 76 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/16 | |||||||||||||||||||||||
| Hour (PDT) | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Temperature (°C) | 16 | 18 | 22 | 24 | 27 | 29 | 30 | 31 | 31 | 31 | 29 | 27 | 23 | 21 | 20 | 19 | 18 | 17 | 17 | 16 | 15 | 14 | 14 | 15 |
| Dewpoint (°C) | 11 | 11 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 11 | 12 | 11 | 11 | 11 | 11 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 |
| Heat Index (°C) | 24 | 27 | 28 | 29 | 30 | 30 | 29 | 28 | 27 | |||||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 5 | 5 | 5 | 7 | 7 | 7 | 8 | 8 | 8 | 6 | 6 | 6 | 5 | 5 | 5 | 2 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | WSW | W | WNW | WNW | WNW | WNW | WNW | WNW | WNW | W | W | W | WSW | WSW | WSW | WSW | WSW | WSW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 5 | 4 | 3 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 7 | 7 | 7 | 12 | 12 | 12 |
| 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 (%) | 75 | 64 | 53 | 45 | 42 | 37 | 33 | 30 | 30 | 30 | 33 | 38 | 46 | 52 | 57 | 61 | 65 | 68 | 70 | 74 | 77 | 79 | 81 | 80 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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