| Point Forecast: Plymouth CA 38.47N 120.83W (Elev. 366 m) |
Last Update: 2:00 pm PDT Sep 13, 2026 |
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| Date | 09/13 | 09/14 | ||||||||||||||||||||||
| 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 (°C) | 21 | 18 | 17 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 14 | 17 | 21 | 23 | 24 | 26 | 28 | 28 | 29 | 29 | 28 | 26 |
| Dewpoint (°C) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 2 | 4 | 4 | 3 | 3 | 3 | 2 | 1 | 1 | 0 | 1 |
| Heat Index (°C) | 24 | 26 | 27 | 27 | 27 | 28 | 27 | 26 | ||||||||||||||||
| Surface Wind (mph) | 2 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 2 | 2 | 2 |
| Wind Dir | NNW | N | NE | NE | NE | NE | NNE | NE | ENE | ENE | E | E | ESE | SW | SW | WSW | WSW | WSW | WSW | WSW | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 4 | 6 | 6 | 8 | 8 | 7 | 3 | 1 | 2 | 5 | 6 | 7 | 8 | 4 | 7 | 6 | 5 | 5 | 3 | 2 | 0 | 3 | 3 | 3 |
| 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 (%) | 31 | 35 | 39 | 43 | 44 | 46 | 46 | 47 | 47 | 48 | 48 | 47 | 41 | 36 | 33 | 29 | 25 | 23 | 20 | 18 | 16 | 16 | 16 | 19 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/15 | |||||||||||||||||||||||
| 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 (°C) | 24 | 21 | 19 | 18 | 17 | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 16 | 19 | 22 | 25 | 27 | 28 | 29 | 30 | 30 | 29 | 28 | 26 |
| Dewpoint (°C) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 4 | 4 | 6 | 6 | 6 | 4 | 3 | 3 | 3 | 4 |
| Heat Index (°C) | 24 | 25 | 26 | 27 | 27 | 28 | 28 | 28 | 27 | 26 | ||||||||||||||
| Surface Wind (mph) | 1 | 1 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 5 | 6 | 6 | 6 | 5 | 5 | 5 |
| Wind Dir | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | WSW | WSW | WSW | WSW | WSW | WSW | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 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 (%) | 23 | 27 | 31 | 34 | 36 | 38 | 39 | 39 | 40 | 40 | 40 | 38 | 35 | 32 | 30 | 27 | 25 | 24 | 23 | 20 | 18 | 19 | 21 | 26 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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