| Point Forecast: 8 Miles NNW Bethel Island CA 38.16N 121.7W (Elev. 30 m) |
Last Update: 11:31 am PDT Jul 15, 2026 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (PDT) | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 |
| Temperature (°C) | 33 | 35 | 36 | 37 | 36 | 36 | 35 | 33 | 30 | 27 | 26 | 24 | 23 | 22 | 21 | 19 | 19 | 18 | 17 | 18 | 20 | 22 | 25 | 27 |
| Dewpoint (°C) | 11 | 12 | 11 | 12 | 11 | 11 | 10 | 9 | 10 | 9 | 10 | 9 | 9 | 10 | 9 | 9 | 9 | 9 | 8 | 9 | 9 | 9 | 10 | 11 |
| Heat Index (°C) | 32 | 33 | 34 | 36 | 34 | 34 | 33 | 32 | 29 | 27 | 26 | 24 | 25 | 27 | ||||||||||
| Surface Wind (mph) | 13 | 14 | 15 | 16 | 17 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 17 | 18 | 18 | 18 | 16 | 17 | 17 | 16 | 16 |
| Wind Dir | W | W | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | W | WSW | WSW | W |
| Gust | 29 | 29 | 30 | 29 | ||||||||||||||||||||
| Sky Cover (%) | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 2 | 2 | 3 | 3 | 5 | 6 | 2 | 2 | 1 | 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 (%) | 26 | 24 | 22 | 22 | 22 | 22 | 22 | 23 | 29 | 33 | 37 | 39 | 43 | 45 | 48 | 50 | 52 | 55 | 55 | 55 | 50 | 44 | 39 | 36 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (PDT) | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 |
| Temperature (°C) | 28 | 30 | 31 | 32 | 32 | 31 | 31 | 29 | 25 | 22 | 21 | 19 | 18 | 17 | 16 | 15 | 15 | 15 | 14 | 14 | 16 | 18 | 20 | 22 |
| Dewpoint (°C) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 11 | 11 | 10 | 11 | 12 | 12 | 12 | 12 |
| Heat Index (°C) | 28 | 29 | 29 | 30 | 30 | 29 | 29 | 28 | 25 | |||||||||||||||
| Surface Wind (mph) | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Wind Dir | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 8 | 8 | 8 | 3 | 3 | 3 | 17 | 17 | 17 | 24 | 24 | 24 | 11 | 11 | 11 | 4 |
| 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 | 31 | 29 | 28 | 28 | 28 | 30 | 33 | 39 | 47 | 52 | 58 | 63 | 66 | 69 | 73 | 76 | 78 | 78 | 77 | 74 | 68 | 59 | 51 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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