| Point Forecast: 8 Miles W Donner Summit CA 39.33N 120.55W (Elev. 6841 ft) |
Last Update: 12:41 am PDT May 19, 2024 |
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| Date | 05/19 | 05/20 | ||||||||||||||||||||||
| Hour (PDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°F) | 45 | 45 | 44 | 44 | 44 | 44 | 45 | 48 | 50 | 52 | 53 | 54 | 55 | 55 | 55 | 56 | 55 | 53 | 51 | 47 | 43 | 42 | 41 | 40 |
| Dewpoint (°F) | 43 | 44 | 42 | 42 | 43 | 41 | 41 | 40 | 38 | 37 | 36 | 36 | 36 | 34 | 34 | 35 | 33 | 34 | 35 | 35 | 34 | 34 | 34 | 34 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 6 | 8 | 9 | 10 | 10 | 10 | 10 | 10 | 9 | 8 | 6 | 6 | 3 | 2 | 2 | 2 |
| Wind Dir | SSE | S | S | S | S | S | S | SSW | SW | SW | SW | SW | WSW | WSW | WSW | WSW | WSW | W | W | W | NW | NNE | NE | ENE |
| Gust | 18 | 20 | 20 | 20 | ||||||||||||||||||||
| Sky Cover (%) | 27 | 27 | 25 | 28 | 20 | 22 | 26 | 28 | 20 | 29 | 28 | 30 | 26 | 32 | 26 | 27 | 23 | 21 | 17 | 18 | 10 | 7 | 8 | 4 |
| Precipitation Potential (%) | 0 | 1 | 1 | 1 | 0 | 1 | 6 | 5 | 5 | 5 | 5 | 6 | 7 | 7 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 0 | 0 |
| Relative Humidity (%) | 91 | 94 | 93 | 94 | 97 | 92 | 86 | 73 | 64 | 57 | 52 | 50 | 48 | 45 | 46 | 46 | 44 | 48 | 53 | 62 | 69 | 73 | 76 | 79 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/21 | |||||||||||||||||||||||
| Hour (PDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°F) | 39 | 39 | 38 | 38 | 37 | 37 | 38 | 42 | 45 | 49 | 50 | 51 | 53 | 54 | 55 | 56 | 55 | 54 | 51 | 49 | 46 | 44 | 42 | 41 |
| Dewpoint (°F) | 33 | 31 | 29 | 28 | 26 | 25 | 24 | 22 | 22 | 21 | 19 | 19 | 20 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 20 | 18 | 16 | 16 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 2 | 3 | 5 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 8 | 8 |
| Wind Dir | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | NNE | NNE | NNE | WNW | WNW | WNW | NW | NW | NW | NNE | NNE | NNE | ENE | ENE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 4 | 6 | 5 | 7 | 5 | 5 | 5 | 2 | 2 | 2 | 7 | 7 | 7 | 32 | 32 | 32 | 23 | 23 | 23 | 11 | 11 | 11 | 5 | 5 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 78 | 72 | 72 | 69 | 64 | 62 | 55 | 45 | 39 | 33 | 29 | 27 | 27 | 27 | 26 | 26 | 27 | 29 | 32 | 34 | 35 | 35 | 35 | 36 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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