| Point Forecast: Snoqualmie Pass WA 47.43N 121.41W (Elev. 3087 ft) |
Last Update: 11:26 am PDT Aug 17, 2026 |
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| Date | 08/17 | 08/18 | ||||||||||||||||||||||
| Hour (PDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°F) | 74 | 74 | 74 | 75 | 73 | 70 | 66 | 60 | 58 | 56 | 55 | 54 | 53 | 53 | 52 | 52 | 51 | 50 | 52 | 56 | 61 | 64 | 67 | 70 |
| Dewpoint (°F) | 54 | 54 | 53 | 54 | 54 | 55 | 56 | 52 | 53 | 52 | 51 | 50 | 49 | 50 | 49 | 49 | 49 | 49 | 51 | 51 | 52 | 52 | 52 | 53 |
| Heat Index (°F) | 75 | |||||||||||||||||||||||
| Surface Wind (mph) | 5 | 5 | 5 | 5 | 5 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 5 | 6 | 6 |
| Wind Dir | W | WNW | WNW | WNW | WNW | WNW | NW | NNW | NNW | N | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NW | NW | NW | WNW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 5 | 5 | 4 | 5 | 5 | 10 | 35 | 46 | 49 | 61 | 58 | 57 | 59 | 56 | 65 | 63 | 67 | 64 | 59 | 49 | 52 | 36 | 40 | 48 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 50 | 49 | 48 | 48 | 52 | 58 | 70 | 76 | 82 | 85 | 87 | 86 | 87 | 88 | 90 | 89 | 92 | 96 | 97 | 84 | 73 | 65 | 58 | 54 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/19 | |||||||||||||||||||||||
| Hour (PDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°F) | 71 | 71 | 72 | 72 | 70 | 67 | 64 | 59 | 57 | 55 | 54 | 53 | 53 | 52 | 52 | 51 | 51 | 50 | 50 | 53 | 58 | 63 | 66 | 69 |
| Dewpoint (°F) | 52 | 51 | 51 | 51 | 52 | 52 | 54 | 51 | 51 | 50 | 50 | 50 | 50 | 49 | 49 | 48 | 49 | 49 | 49 | 50 | 51 | 51 | 52 | 53 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 6 | 6 | 6 | 6 | 6 | 6 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 |
| Wind Dir | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | NW | NW | NW | NNW | NNW | NNW | NNW | NNW | NNW | WNW | WNW | WNW | WNW | WNW | WNW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 40 | 28 | 16 | 16 | 16 | 16 | 53 | 53 | 53 | 60 | 60 | 60 | 78 | 78 | 78 | 75 | 75 | 75 | 32 | 32 | 32 | 13 | 13 | 13 |
| 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 (%) | 51 | 50 | 48 | 48 | 52 | 58 | 69 | 75 | 80 | 84 | 86 | 88 | 88 | 89 | 90 | 89 | 92 | 96 | 96 | 89 | 77 | 66 | 60 | 56 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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