| Point Forecast: Snoqualmie Pass WA 47.43N 121.41W (Elev. 3087 ft) |
Last Update: 11:27 am PDT May 16, 2026 |
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| Date | 05/16 | 05/17 | ||||||||||||||||||||||
| Hour (PDT) | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |
| Temperature (°F) | 39 | 40 | 39 | 38 | 37 | 35 | 35 | 34 | 34 | 34 | 34 | 34 | 34 | 33 | 34 | 34 | 34 | 37 | 40 | 43 | 45 | 46 | 47 | 48 |
| Dewpoint (°F) | 35 | 37 | 37 | 37 | 36 | 34 | 34 | 32 | 33 | 33 | 33 | 33 | 33 | 32 | 33 | 33 | 34 | 37 | 37 | 38 | 38 | 38 | 39 | 39 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 6 | 6 | 6 |
| Wind Dir | WNW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 69 | 70 | 67 | 72 | 67 | 75 | 75 | 68 | 69 | 75 | 80 | 83 | 76 | 75 | 76 | 74 | 68 | 66 | 64 | 60 | 67 | 69 | 64 | 60 |
| Precipitation Potential (%) | 53 | 55 | 51 | 30 | 22 | 21 | 20 | 16 | 12 | 14 | 12 | 12 | 15 | 5 | 3 | 2 | 1 | 1 | 1 | 2 | 2 | 0 | 0 | 0 |
| Relative Humidity (%) | 87 | 90 | 93 | 95 | 96 | 96 | 95 | 94 | 95 | 95 | 96 | 97 | 97 | 97 | 98 | 98 | 99 | 99 | 90 | 81 | 77 | 74 | 73 | 70 |
| Rain | Chc | Lkly | Chc | Chc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/18 | |||||||||||||||||||||||
| Hour (PDT) | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |
| Temperature (°F) | 49 | 49 | 48 | 47 | 45 | 40 | 39 | 37 | 37 | 36 | 36 | 36 | 35 | 34 | 36 | 37 | 38 | 42 | 46 | 50 | 52 | 53 | 54 | 55 |
| Dewpoint (°F) | 39 | 39 | 40 | 40 | 40 | 37 | 37 | 35 | 35 | 35 | 35 | 35 | 34 | 33 | 35 | 36 | 37 | 39 | 39 | 39 | 39 | 38 | 38 | 38 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 6 | 5 | 5 | 5 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 5 | 5 | 5 | 7 | 7 |
| Wind Dir | NW | NW | NW | NW | NW | NW | NW | N | N | N | N | N | N | NNW | NNW | NNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 40 | 38 | 38 | 38 | 68 | 68 | 68 | 84 | 84 | 84 | 87 | 87 | 87 | 92 | 92 | 92 | 55 | 55 | 55 | 45 | 45 | 45 | 32 | 32 |
| 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 (%) | 69 | 68 | 73 | 76 | 82 | 89 | 91 | 92 | 93 | 95 | 96 | 97 | 97 | 98 | 98 | 98 | 96 | 88 | 76 | 66 | 60 | 57 | 55 | 53 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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