| Point Forecast: Antioch CA 38N 121.81W (Elev. 36 ft) |
Last Update: 2:01 am PDT Jul 17, 2026 |
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| Date | 07/17 | 07/18 | ||||||||||||||||||||||
| Hour (PDT) | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 |
| Temperature (°F) | 60 | 61 | 63 | 66 | 70 | 74 | 76 | 80 | 82 | 83 | 84 | 83 | 81 | 78 | 73 | 69 | 67 | 65 | 65 | 64 | 63 | 61 | 60 | 60 |
| Dewpoint (°F) | 51 | 52 | 53 | 52 | 53 | 54 | 53 | 54 | 53 | 53 | 53 | 52 | 53 | 54 | 52 | 52 | 51 | 51 | 51 | 52 | 52 | 52 | 52 | 52 |
| Heat Index (°F) | 76 | 80 | 81 | 82 | 83 | 82 | 80 | 78 | ||||||||||||||||
| Surface Wind (mph) | 8 | 7 | 8 | 8 | 9 | 10 | 10 | 11 | 11 | 13 | 13 | 13 | 13 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 8 | 7 | 7 | 7 |
| Wind Dir | WSW | WSW | W | W | W | W | W | W | W | W | W | W | W | W | W | WSW | W | W | W | W | W | W | W | W |
| Gust | 18 | 20 | 21 | 21 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 18 | ||||||||||||
| Sky Cover (%) | 1 | 1 | 3 | 2 | 1 | 0 | 0 | 0 | 1 | 1 | 2 | 2 | 2 | 3 | 2 | 5 | 5 | 6 | 4 | 2 | 2 | 3 | 2 | 5 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| Relative Humidity (%) | 72 | 72 | 69 | 62 | 55 | 50 | 45 | 41 | 38 | 35 | 35 | 35 | 38 | 42 | 49 | 54 | 58 | 60 | 62 | 65 | 68 | 71 | 74 | 76 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/19 | |||||||||||||||||||||||
| Hour (PDT) | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 |
| Temperature (°F) | 59 | 60 | 62 | 65 | 69 | 72 | 76 | 80 | 82 | 84 | 85 | 85 | 83 | 79 | 75 | 72 | 69 | 67 | 65 | 64 | 63 | 62 | 61 | 61 |
| Dewpoint (°F) | 52 | 52 | 54 | 54 | 55 | 55 | 55 | 56 | 55 | 54 | 53 | 53 | 53 | 53 | 52 | 52 | 52 | 52 | 51 | 51 | 51 | 51 | 52 | 52 |
| Heat Index (°F) | 76 | 80 | 82 | 83 | 83 | 83 | 82 | 80 | 75 | |||||||||||||||
| Surface Wind (mph) | 7 | 7 | 7 | 7 | 7 | 9 | 9 | 9 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 8 | 8 | 8 | 7 |
| Wind Dir | W | W | W | W | W | W | W | W | W | W | W | W | W | W | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW |
| Gust | 21 | 21 | 21 | 21 | 21 | 21 | 18 | 18 | 18 | 18 | 18 | 18 | ||||||||||||
| Sky Cover (%) | 5 | 5 | 13 | 13 | 13 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 5 | 5 | 11 | 11 | 11 | 33 | 33 | 33 | 42 |
| 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 | 1 |
| Relative Humidity (%) | 76 | 76 | 74 | 67 | 60 | 54 | 49 | 44 | 39 | 35 | 33 | 33 | 35 | 40 | 45 | 50 | 54 | 58 | 61 | 63 | 65 | 68 | 71 | 73 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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