| Point Forecast: 2 Miles ENE Donner Summit CA 39.33N 120.35W (Elev. 7195 ft) |
Last Update: 12:22 am PDT May 16, 2025 |
 |
|
[show menu] |
| Date | 05/16 | 05/17 | ||||||||||||||||||||||
| Hour (PDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 40 | 40 | 39 | 39 | 39 | 41 | 44 | 47 | 50 | 53 | 55 | 56 | 56 | 56 | 55 | 54 | 53 | 50 | 47 | 45 | 44 | 42 | 41 | 41 |
| Dewpoint (°F) | 31 | 31 | 31 | 31 | 32 | 33 | 33 | 34 | 35 | 35 | 36 | 36 | 37 | 38 | 38 | 39 | 39 | 39 | 38 | 39 | 38 | 37 | 37 | 37 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 6 | 6 | 6 | 7 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 3 | 5 | 5 |
| Wind Dir | NNW | NNE | NNE | NNE | NNE | NE | E | S | SSW | WSW | WSW | WSW | WSW | W | W | W | W | W | W | W | W | WSW | WSW | WSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 86 | 85 | 63 | 49 | 30 | 41 | 47 | 44 | 43 | 54 | 55 | 54 | 41 | 43 | 28 | 36 | 26 | 34 | 42 | 44 | 26 | 30 | 39 | 47 |
| Precipitation Potential (%) | 4 | 4 | 4 | 1 | 1 | 0 | 0 | 0 | 1 | 2 | 3 | 5 | 12 | 10 | 8 | 7 | 5 | 3 | 2 | 2 | 1 | 1 | 1 | 0 |
| Relative Humidity (%) | 70 | 71 | 73 | 72 | 75 | 73 | 65 | 60 | 56 | 50 | 48 | 47 | 48 | 50 | 53 | 57 | 59 | 67 | 72 | 79 | 80 | 83 | 87 | 86 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/18 | |||||||||||||||||||||||
| Hour (PDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 41 | 42 | 41 | 41 | 40 | 41 | 42 | 42 | 43 | 44 | 45 | 46 | 46 | 45 | 44 | 42 | 41 | 40 | 39 | 38 | 38 | 37 | 36 | 36 |
| Dewpoint (°F) | 38 | 39 | 38 | 38 | 36 | 36 | 35 | 34 | 33 | 32 | 32 | 32 | 33 | 34 | 34 | 35 | 35 | 35 | 35 | 34 | 34 | 33 | 32 | 32 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 5 | 6 | 6 | 7 | 7 | 7 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 7 | 7 | 7 | 5 | 5 | 5 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | WSW | WSW | WSW | W | W | W | W | W | W | WNW | WNW | WNW |
| Gust | 21 | 21 | 21 | 24 | 24 | 24 | 23 | 23 | 23 | 20 | 20 | 20 | ||||||||||||
| Sky Cover (%) | 64 | 79 | 76 | 71 | 71 | 71 | 65 | 65 | 65 | 59 | 59 | 59 | 59 | 59 | 59 | 57 | 57 | 57 | 54 | 54 | 54 | 46 | 46 | 46 |
| Precipitation Potential (%) | 1 | 2 | 2 | 13 | 13 | 13 | 13 | 13 | 13 | 38 | 38 | 38 | 38 | 38 | 38 | 18 | 18 | 18 | 18 | 18 | 18 | 6 | 6 | 6 |
| Relative Humidity (%) | 88 | 88 | 89 | 89 | 87 | 82 | 76 | 73 | 67 | 62 | 59 | 59 | 61 | 65 | 70 | 75 | 79 | 83 | 85 | 86 | 85 | 85 | 86 | 87 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| ||||||||