| Point Forecast: 21 Miles NW Chester CA 40.48N 121.54W (Elev. 7500 ft) |
Last Update: 3:46 am PDT Sep 16, 2026 |
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| Date | 09/16 | 09/17 | ||||||||||||||||||||||
| 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 (°F) | 44 | 48 | 51 | 53 | 53 | 53 | 53 | 54 | 53 | 52 | 49 | 44 | 42 | 41 | 40 | 40 | 39 | 39 | 38 | 38 | 37 | 37 | 37 | 39 |
| Dewpoint (°F) | 31 | 33 | 33 | 34 | 34 | 37 | 37 | 38 | 37 | 38 | 39 | 36 | 34 | 33 | 32 | 32 | 32 | 32 | 31 | 31 | 31 | 31 | 31 | 34 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 3 | 2 | 2 | 3 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 |
| Wind Dir | SSE | SSE | S | S | S | S | S | S | S | S | S | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 3 | 2 | 0 | 30 | 48 | 43 | 40 | 22 | 17 | 26 | 2 | 15 | 4 | 3 | 2 | 4 | 8 | 9 | 18 | 34 | 35 | 35 | 35 | 33 |
| Precipitation Potential (%) | 1 | 2 | 1 | 17 | 24 | 22 | 21 | 14 | 4 | 4 | 4 | 4 | 4 | 4 | 0 | 0 | 0 | 2 | 4 | 3 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 59 | 55 | 50 | 48 | 49 | 55 | 55 | 55 | 54 | 59 | 68 | 74 | 73 | 72 | 72 | 73 | 75 | 76 | 77 | 77 | 78 | 79 | 80 | 82 |
| Rain | -- | -- | -- | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/18 | |||||||||||||||||||||||
| 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 (°F) | 41 | 45 | 47 | 48 | 49 | 49 | 49 | 49 | 51 | 49 | 46 | 44 | 42 | 41 | 40 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 40 | 41 |
| Dewpoint (°F) | 36 | 38 | 39 | 39 | 40 | 41 | 41 | 41 | 42 | 41 | 41 | 41 | 39 | 37 | 35 | 34 | 34 | 34 | 34 | 33 | 33 | 33 | 34 | 34 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 2 | 2 | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 5 | 2 | 2 | 2 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 7 |
| Wind Dir | SW | SW | WSW | WSW | WSW | W | W | W | W | W | W | W | W | W | E | E | E | E | E | E | ENE | ENE | ENE | E |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 33 | 33 | 53 | 53 | 53 | 55 | 55 | 55 | 40 | 40 | 40 | 26 | 26 | 26 | 14 | 14 | 14 | 6 | 6 | 6 | 11 | 11 | 11 | 3 |
| Precipitation Potential (%) | 1 | 1 | 27 | 27 | 27 | 27 | 27 | 27 | 15 | 15 | 15 | 15 | 15 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 81 | 76 | 73 | 70 | 71 | 73 | 74 | 74 | 71 | 75 | 82 | 88 | 88 | 86 | 83 | 83 | 82 | 82 | 81 | 79 | 78 | 78 | 78 | 76 |
| Rain | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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