| Point Forecast: 14 Miles SSW Donner Summit CA 39.14N 120.47W (Elev. 5705 ft) |
Last Update: 5:21 pm PDT May 19, 2024 |
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| Date | 05/19 | 05/20 | ||||||||||||||||||||||
| Hour (PDT) | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Temperature (°F) | 47 | 45 | 45 | 44 | 44 | 43 | 43 | 42 | 42 | 44 | 48 | 51 | 57 | 58 | 60 | 59 | 59 | 58 | 57 | 56 | 55 | 53 | 50 | 48 |
| Dewpoint (°F) | 39 | 38 | 38 | 37 | 36 | 33 | 32 | 30 | 30 | 29 | 29 | 28 | 31 | 31 | 33 | 33 | 32 | 32 | 34 | 33 | 32 | 32 | 30 | 28 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 5 | 3 | 3 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 9 | 8 | 8 | 8 | 8 | 8 |
| Wind Dir | NNW | NE | NE | NE | NE | NE | NE | NE | NE | NE | ENE | ENE | ENE | W | W | W | W | WNW | WNW | NW | NW | NW | NNE | NNE |
| Gust | 18 | |||||||||||||||||||||||
| Sky Cover (%) | 12 | 7 | 5 | 4 | 3 | 4 | 6 | 6 | 5 | 5 | 2 | 2 | 4 | 7 | 15 | 23 | 40 | 43 | 43 | 41 | 41 | 41 | 6 | 6 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 4 | 5 | 7 | 6 | 6 | 1 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 74 | 76 | 76 | 75 | 72 | 67 | 65 | 63 | 63 | 54 | 48 | 42 | 37 | 36 | 35 | 37 | 37 | 38 | 41 | 41 | 42 | 45 | 46 | 46 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/21 | |||||||||||||||||||||||
| Hour (PDT) | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Temperature (°F) | 46 | 45 | 44 | 44 | 43 | 42 | 42 | 42 | 43 | 45 | 48 | 51 | 55 | 59 | 62 | 64 | 65 | 65 | 64 | 62 | 59 | 56 | 53 | 51 |
| Dewpoint (°F) | 24 | 20 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 18 | 19 | 19 | 20 | 21 | 22 | 23 | 25 | 28 | 30 | 32 | 33 | 33 | 33 | 32 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 6 | 6 | 6 | 7 | 7 | 7 | 10 | 10 | 10 | 6 | 6 |
| Wind Dir | NNE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | E | E | E | E | E | E | W | W | W | W | W | W | W | W |
| Gust | 18 | 18 | 18 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | |||||||||
| Sky Cover (%) | 6 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 11 | 11 |
| Precipitation Potential (%) | 1 | 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 (%) | 42 | 36 | 35 | 35 | 36 | 37 | 37 | 37 | 36 | 34 | 31 | 28 | 25 | 23 | 21 | 21 | 22 | 25 | 29 | 33 | 38 | 42 | 46 | 48 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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