| Point Forecast: Donner Summit CA 39.3N 120.4W (Elev. 2145 m) |
Last Update: 5:21 am PDT Jun 15, 2025 |
 |
|
[show menu] |
| Date | 06/15 | 06/16 | ||||||||||||||||||||||
| Hour (PDT) | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 |
| Temperature (°C) | 15 | 17 | 18 | 20 | 21 | 21 | 21 | 21 | 20 | 19 | 18 | 15 | 12 | 10 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 8 | 12 |
| Dewpoint (°C) | -3 | -4 | -6 | -6 | -6 | -6 | -5 | -4 | -4 | -5 | -4 | -2 | -2 | -2 | -2 | -3 | -3 | -3 | -4 | -4 | -4 | -5 | -4 | -3 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 5 | 6 |
| Wind Dir | SSW | SSW | SSW | SSW | SW | SW | SW | SW | SW | SW | SW | SW | WSW | S | S | SSE | SSE | S | SSW | SSW | S | S | S | SSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 40 | 36 | 25 | 6 | 4 | 0 | 0 | 2 | 6 | 16 | 28 | 27 | 30 | 33 | 25 | 25 | 13 | 20 | 17 | 8 | 10 | 10 | 10 | 2 |
| 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 (%) | 28 | 22 | 19 | 17 | 17 | 16 | 17 | 18 | 19 | 19 | 22 | 30 | 38 | 42 | 45 | 44 | 45 | 45 | 45 | 44 | 46 | 44 | 42 | 34 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/17 | |||||||||||||||||||||||
| Hour (PDT) | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 |
| Temperature (°C) | 15 | 17 | 17 | 18 | 19 | 19 | 19 | 18 | 18 | 17 | 15 | 13 | 11 | 9 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 8 | 9 | 12 |
| Dewpoint (°C) | -5 | -7 | -9 | -10 | -10 | -9 | -9 | -9 | -8 | -6 | -5 | -4 | -3 | -3 | -3 | -3 | -4 | -4 | -5 | -5 | -4 | -4 | -2 | -1 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 5 | 5 | 5 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 2 |
| Wind Dir | SSW | SSW | SW | SW | SW | SW | SW | SW | WSW | WSW | WSW | WSW | WSW | WSW | NE | NE | NE | ENE | ENE | ENE | ENE | ENE | ENE | E |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 2 | 2 | 10 | 10 | 10 | 6 | 6 | 6 | 7 | 7 | 7 | 4 | 4 | 4 | 3 | 3 | 3 | 1 | 1 | 1 | 2 | 2 | 2 | 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 (%) | 25 | 19 | 16 | 14 | 14 | 14 | 14 | 15 | 17 | 20 | 25 | 30 | 37 | 43 | 48 | 48 | 47 | 45 | 45 | 46 | 46 | 45 | 43 | 39 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| ||||||||