| Point Forecast: 5 Miles NNE Chinook Pass WA 46.93N 121.46W (Elev. 6322 ft) |
Last Update: 11:27 pm PDT May 11, 2026 |
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| Date | 05/12 | 05/13 | ||||||||||||||||||||||
| 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) | 42 | 42 | 41 | 40 | 42 | 43 | 45 | 50 | 54 | 58 | 60 | 63 | 63 | 64 | 65 | 63 | 58 | 55 | 50 | 48 | 47 | 47 | 46 | 46 |
| Dewpoint (°F) | 27 | 27 | 27 | 25 | 26 | 27 | 27 | 29 | 30 | 31 | 32 | 34 | 34 | 35 | 37 | 38 | 40 | 43 | 42 | 41 | 41 | 42 | 41 | 43 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 15 | 15 | 16 | 17 | 18 | 18 | 18 | 18 | 18 | 17 | 15 | 13 | 10 | 9 | 9 | 9 | 11 | 11 | 10 | 9 | 8 | 10 | 11 | 13 |
| Wind Dir | ESE | ESE | E | ESE | ESE | ESE | ESE | ESE | ESE | SE | SE | SSE | SSE | S | S | SSW | WSW | NW | NNW | NNW | NW | W | W | NW |
| Gust | 23 | 25 | 28 | 29 | 30 | 31 | 30 | 32 | 33 | 32 | 29 | 25 | 22 | 20 | 22 | 22 | 21 | 22 | ||||||
| Sky Cover (%) | 24 | 16 | 21 | 32 | 38 | 47 | 43 | 36 | 32 | 40 | 38 | 40 | 49 | 39 | 50 | 50 | 45 | 51 | 72 | 73 | 76 | 87 | 83 | 87 |
| Precipitation Potential (%) | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 8 | 6 | 6 | 8 | 22 | 25 | 54 | 59 |
| Relative Humidity (%) | 55 | 56 | 56 | 55 | 53 | 52 | 50 | 44 | 39 | 35 | 34 | 34 | 34 | 34 | 36 | 40 | 52 | 63 | 73 | 76 | 78 | 82 | 82 | 88 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Lkly | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/14 | |||||||||||||||||||||||
| 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) | 44 | 43 | 41 | 40 | 38 | 38 | 37 | 36 | 37 | 38 | 38 | 39 | 39 | 39 | 40 | 39 | 38 | 37 | 36 | 36 | 36 | 36 | 36 | 36 |
| Dewpoint (°F) | 41 | 41 | 40 | 39 | 36 | 36 | 36 | 36 | 36 | 36 | 35 | 37 | 37 | 36 | 37 | 36 | 36 | 35 | 33 | 32 | 32 | 31 | 31 | 31 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 14 | 14 | 15 | 17 | 17 | 17 | 23 | 23 | 23 | 26 | 26 | 26 | 26 | 26 | 26 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Wind Dir | NW | NW | NW | WNW | WNW | WNW | WNW | WNW | WNW | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W |
| Gust | 23 | 25 | 25 | 33 | 33 | 33 | 43 | 43 | 43 | 51 | 51 | 51 | 52 | 52 | 52 | 53 | 53 | 53 | 53 | 53 | 53 | 52 | 52 | 52 |
| Sky Cover (%) | 88 | 88 | 86 | 90 | 90 | 90 | 90 | 90 | 90 | 85 | 85 | 85 | 84 | 84 | 84 | 64 | 64 | 64 | 52 | 52 | 52 | 40 | 40 | 40 |
| Precipitation Potential (%) | 58 | 60 | 66 | 82 | 82 | 82 | 82 | 82 | 82 | 79 | 79 | 79 | 79 | 79 | 79 | 33 | 33 | 33 | 33 | 33 | 33 | 13 | 13 | 13 |
| Relative Humidity (%) | 89 | 92 | 95 | 95 | 93 | 94 | 97 | 99 | 95 | 92 | 90 | 91 | 91 | 89 | 88 | 89 | 91 | 91 | 90 | 88 | 85 | 83 | 82 | 82 |
| Rain | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Ocnl | Ocnl | Lkly | Ocnl | Ocnl | Ocnl | Lkly | Ocnl | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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