| Point Forecast: 17 Miles ENE Mount St Helens WA 46.27N 121.86W (Elev. 4833 ft) |
Last Update: 2:41 am PDT May 7, 2024 |
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| Date | 05/07 | 05/08 | ||||||||||||||||||||||
| Hour (PDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 27 | 27 | 28 | 28 | 28 | 29 | 30 | 30 | 31 | 32 | 34 | 34 | 35 | 36 | 34 | 34 | 34 | 32 | 31 | 31 | 31 | 31 | 31 | 30 |
| Dewpoint (°F) | 24 | 24 | 25 | 26 | 25 | 25 | 26 | 26 | 26 | 27 | 29 | 29 | 29 | 31 | 31 | 32 | 33 | 31 | 30 | 29 | 30 | 29 | 28 | 28 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 18 | 18 | 18 | 18 | 18 | 18 | 21 | 22 | 21 | 21 | 20 | 21 | 20 | 22 | 20 | 21 | 21 | 20 | 18 | 18 | 16 | 16 | 14 | 14 |
| Wind Dir | WNW | WNW | WNW | WNW | WNW | NW | NW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | NW | NW | NW | NW | NW | NW | NNW | NW | NNW | NNW |
| Gust | 21 | 21 | 21 | 21 | 21 | 22 | ||||||||||||||||||
| Sky Cover (%) | 85 | 86 | 87 | 82 | 86 | 82 | 86 | 86 | 82 | 74 | 68 | 63 | 70 | 62 | 64 | 75 | 73 | 73 | 72 | 68 | 68 | 69 | 63 | 61 |
| Precipitation Potential (%) | 51 | 31 | 44 | 45 | 56 | 55 | 47 | 27 | 25 | 44 | 45 | 43 | 37 | 43 | 28 | 29 | 19 | 15 | 12 | 7 | 2 | 2 | 1 | 1 |
| Relative Humidity (%) | 87 | 89 | 87 | 91 | 87 | 85 | 84 | 84 | 82 | 82 | 81 | 81 | 78 | 83 | 89 | 92 | 96 | 95 | 95 | 94 | 95 | 94 | 90 | 91 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/09 | |||||||||||||||||||||||
| Hour (PDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 30 | 30 | 29 | 30 | 30 | 32 | 35 | 38 | 40 | 42 | 43 | 45 | 46 | 46 | 47 | 45 | 42 | 40 | 38 | 37 | 35 | 35 | 34 | 34 |
| Dewpoint (°F) | 27 | 27 | 25 | 26 | 26 | 26 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 34 | 35 | 35 | 35 | 34 | 33 | 32 | 30 | 29 | 27 | 26 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 16 | 16 | 16 | 18 | 18 | 18 | 11 | 11 | 11 | 9 | 9 | 9 | 9 |
| Wind Dir | NNW | N | N | N | N | N | N | N | N | N | N | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNE | NNE | NNE | ENE |
| Gust | 18 | |||||||||||||||||||||||
| Sky Cover (%) | 61 | 61 | 63 | 63 | 63 | 34 | 34 | 34 | 11 | 11 | 11 | 3 | 3 | 3 | 6 | 6 | 6 | 3 | 3 | 3 | 1 | 1 | 1 | 2 |
| Precipitation Potential (%) | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 90 | 90 | 85 | 85 | 84 | 79 | 75 | 71 | 67 | 65 | 64 | 62 | 62 | 63 | 63 | 68 | 74 | 79 | 80 | 82 | 83 | 79 | 76 | 72 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
