| Point Forecast: 15 Miles SSE Newhalem WA 48.48N 121.08W (Elev. 3159 ft) |
Last Update: 3:40 pm PDT May 18, 2024 |
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| Date | 05/18 | 05/19 | ||||||||||||||||||||||
| 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 (°F) | 38 | 38 | 38 | 36 | 36 | 34 | 34 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 34 | 36 | 36 | 37 | 40 | 40 | 41 | 41 |
| Dewpoint (°F) | 36 | 36 | 35 | 34 | 34 | 32 | 32 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 32 | 32 | 33 | 36 | 36 | 37 | 37 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 10 | 11 | 11 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 8 | 8 | 9 | 9 | 10 | 10 | 10 | 11 | 11 | 11 |
| Wind Dir | W | W | W | W | W | W | W | W | W | WNW | WNW | WNW | WNW | WNW | WNW | WNW | W | W | W | W | W | W | W | W |
| Gust | 21 | 20 | 20 | 20 | 20 | 20 | 20 | |||||||||||||||||
| Sky Cover (%) | 78 | 79 | 80 | 82 | 83 | 84 | 80 | 84 | 82 | 81 | 82 | 81 | 81 | 80 | 78 | 76 | 76 | 80 | 74 | 75 | 72 | 66 | 62 | 67 |
| Precipitation Potential (%) | 66 | 55 | 48 | 37 | 33 | 29 | 24 | 22 | 20 | 20 | 20 | 23 | 26 | 32 | 37 | 37 | 34 | 30 | 26 | 23 | 25 | 25 | 23 | 17 |
| Relative Humidity (%) | 91 | 91 | 89 | 91 | 91 | 92 | 91 | 91 | 91 | 90 | 88 | 90 | 88 | 87 | 89 | 87 | 86 | 84 | 85 | 86 | 87 | 87 | 86 | 87 |
| Rain | Lkly | Lkly | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | Chc | Chc | SChc | SChc |
| Thunder | -- | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/20 | |||||||||||||||||||||||
| 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 (°F) | 41 | 41 | 41 | 40 | 39 | 37 | 36 | 35 | 34 | 34 | 34 | 33 | 33 | 33 | 34 | 35 | 37 | 40 | 42 | 45 | 47 | 48 | 49 | 50 |
| Dewpoint (°F) | 37 | 37 | 37 | 36 | 35 | 33 | 33 | 32 | 31 | 30 | 29 | 29 | 28 | 28 | 28 | 29 | 31 | 33 | 35 | 36 | 37 | 38 | 39 | 40 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 11 | 11 | 11 | 11 | 8 | 8 | 8 | 6 | 6 | 6 | 5 | 5 | 5 | 3 | 3 | 3 | 5 | 5 | 5 | 9 | 9 | 9 | 13 | 13 |
| Wind Dir | W | W | W | W | WNW | WNW | WNW | NW | NW | NW | NNW | NNW | NNW | N | N | N | NW | NW | NW | WNW | WNW | WNW | W | W |
| Gust | 20 | 20 | 20 | 20 | 21 | 21 | ||||||||||||||||||
| Sky Cover (%) | 66 | 69 | 67 | 71 | 72 | 71 | 60 | 66 | 66 | 66 | 53 | 53 | 53 | 49 | 49 | 49 | 39 | 39 | 39 | 29 | 29 | 29 | 30 | 30 |
| Precipitation Potential (%) | 18 | 8 | 9 | 9 | 8 | 7 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 8 | 8 | 8 | 8 | 8 |
| Relative Humidity (%) | 87 | 87 | 87 | 87 | 87 | 87 | 87 | 87 | 86 | 85 | 83 | 82 | 82 | 81 | 80 | 79 | 78 | 76 | 73 | 71 | 69 | 68 | 68 | 68 |
| Rain | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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