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| Point Forecast: 2 Miles SSW Portola CA 39.79N 120.49W (Elev. 4987 ft) |
Last Update: 3:07 am PDT Aug 4, 2021 |
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| Date | 08/04 | 08/05 | ||||||||||||||||||||||
| Hour (PDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 59 | 58 | 56 | 61 | 56 | 65 | 74 | 80 | 85 | 87 | 89 | 90 | 90 | 89 | 88 | 86 | 83 | 79 | 73 | 68 | 64 | 61 | 59 | 57 |
| Dewpoint (°F) | 29 | 29 | 29 | 30 | 28 | 33 | 35 | 34 | 32 | 30 | 30 | 28 | 30 | 32 | 32 | 34 | 34 | 34 | 33 | 33 | 33 | 32 | 32 | 31 |
| Heat Index (°F) | 79 | 82 | 83 | 85 | 85 | 86 | 85 | 84 | 83 | 80 | 79 | |||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 6 | 6 | 6 | 14 | 14 | 14 | 15 | 15 | 15 | 6 | 6 | 6 | 3 | 3 | 3 | 3 |
| Wind Dir | SE | SE | E | E | E | NE | NE | NE | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | 22 | 22 | 22 | 24 | 24 | 24 | ||||||||||||||||||
| Sky Cover (%) | 7 | 7 | 6 | 6 | 6 | 3 | 3 | 3 | 5 | 5 | 5 | 4 | 4 | 4 | 7 | 7 | 7 | 8 | 8 | 8 | 10 | 10 | 10 | 18 |
| Precipitation Potential (%) | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 31 | 33 | 35 | 31 | 34 | 30 | 24 | 19 | 15 | 13 | 12 | 11 | 12 | 13 | 14 | 16 | 18 | 19 | 23 | 27 | 31 | 32 | 35 | 36 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/06 | |||||||||||||||||||||||
| Hour (PDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 55 | 54 | 52 | 51 | 52 | 62 | 69 | 73 | 76 | 78 | 79 | 79 | 79 | 79 | 79 | 77 | 74 | 71 | 66 | 62 | 58 | 56 | 54 | 52 |
| Dewpoint (°F) | 29 | 29 | 27 | 26 | 25 | 27 | 23 | 18 | 13 | 12 | 13 | 15 | 16 | 17 | 17 | 18 | 20 | 22 | 23 | 25 | 25 | 26 | 26 | 26 |
| Heat Index (°F) | 76 | 78 | 79 | 79 | 77 | 78 | 79 | 77 | ||||||||||||||||
| Surface Wind (mph) | 3 | 3 | 5 | 5 | 5 | 10 | 10 | 10 | 16 | 16 | 16 | 17 | 17 | 17 | 16 | 16 | 16 | 11 | 11 | 11 | 3 | 3 | 3 | 3 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | W | W | W | W | W | W | W |
| Gust | 29 | 29 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | |||||||||||||||
| Sky Cover (%) | 18 | 18 | 17 | 17 | 17 | 4 | 4 | 4 | 5 | 5 | 5 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 6 | 6 | 6 | 5 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 37 | 38 | 38 | 38 | 35 | 27 | 17 | 12 | 9 | 8 | 8 | 9 | 9 | 9 | 10 | 11 | 13 | 16 | 19 | 24 | 28 | 31 | 34 | 36 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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