| Point Forecast: 11 Miles NNW Snoqualmie Pass WA 47.54N 121.54W (Elev. 392 m) |
Last Update: 12:35 pm PDT Jul 18, 2026 |
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| Date | 07/18 | 07/19 | ||||||||||||||||||||||
| 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 (°C) | 19 | 19 | 20 | 19 | 18 | 16 | 15 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 12 | 14 | 15 | 18 | 19 | 21 | 21 | 22 | 22 |
| Dewpoint (°C) | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 8 | 9 | 9 | 12 | 12 | 13 | 14 | 14 | 14 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 7 | 7 | 7 | 7 | 6 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 3 | 6 | 6 | 7 | 7 | 7 |
| Wind Dir | W | WNW | WNW | WNW | WNW | WNW | NW | ENE | ENE | NE | E | E | E | E | E | SSE | W | WSW | WSW | WSW | WSW | WSW | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 22 | 14 | 17 | 23 | 9 | 7 | 5 | 10 | 9 | 10 | 12 | 9 | 6 | 5 | 8 | 3 | 2 | 1 | 0 | 0 | 0 | 7 | 1 | 0 |
| 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 (%) | 65 | 65 | 61 | 64 | 67 | 72 | 75 | 77 | 77 | 78 | 78 | 79 | 79 | 79 | 78 | 75 | 72 | 70 | 68 | 66 | 63 | 64 | 64 | 62 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/20 | |||||||||||||||||||||||
| 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 (°C) | 23 | 23 | 23 | 22 | 21 | 19 | 18 | 17 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 16 | 17 | 19 | 22 | 24 | 26 | 26 | 27 | 27 |
| Dewpoint (°C) | 14 | 14 | 14 | 15 | 15 | 14 | 13 | 13 | 12 | 11 | 11 | 9 | 8 | 7 | 6 | 7 | 8 | 9 | 11 | 12 | 13 | 13 | 14 | 15 |
| Heat Index (°C) | 24 | 26 | 26 | 27 | 27 | |||||||||||||||||||
| Surface Wind (mph) | 6 | 6 | 6 | 6 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 5 |
| Wind Dir | W | W | W | W | NNW | NNW | NNW | E | E | E | E | E | E | E | E | E | E | E | E | W | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 5 | 2 | 2 | 2 | 12 | 12 | 12 | 42 | 42 | 42 | 90 | 90 | 90 | 81 | 81 | 81 | 44 | 44 | 44 | 37 | 37 | 37 | 54 | 54 |
| 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 (%) | 60 | 60 | 58 | 63 | 67 | 73 | 76 | 79 | 76 | 74 | 71 | 68 | 63 | 59 | 58 | 57 | 56 | 53 | 50 | 47 | 46 | 46 | 47 | 47 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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