| Point Forecast: 3 Miles S Mount St Helens WA 46.14N 122.2W (Elev. 2956 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) | 33 | 34 | 34 | 34 | 34 | 35 | 36 | 37 | 38 | 37 | 37 | 36 | 41 | 41 | 41 | 41 | 40 | 38 | 37 | 37 | 35 | 35 | 36 | 35 |
| Dewpoint (°F) | 29 | 30 | 29 | 31 | 30 | 30 | 31 | 31 | 32 | 32 | 31 | 29 | 35 | 36 | 37 | 36 | 36 | 34 | 33 | 34 | 33 | 33 | 32 | 30 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 10 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 13 | 14 | 13 | 11 | 11 | 11 | 10 | 9 | 8 | 7 |
| Wind Dir | WNW | W | W | W | W | W | W | W | WNW | WNW | WNW | WNW | WNW | WNW | WNW | NW | NW | NW | NW | NW | NW | NNW | NNW | NNW |
| Gust | 18 | 18 | 20 | 20 | 20 | 18 | ||||||||||||||||||
| Sky Cover (%) | 87 | 79 | 79 | 80 | 81 | 74 | 79 | 75 | 72 | 71 | 75 | 68 | 58 | 51 | 44 | 47 | 47 | 49 | 48 | 47 | 46 | 39 | 33 | 23 |
| Precipitation Potential (%) | 80 | 65 | 60 | 60 | 69 | 61 | 46 | 32 | 37 | 57 | 62 | 52 | 37 | 26 | 22 | 18 | 18 | 15 | 13 | 8 | 4 | 2 | 1 | 1 |
| Relative Humidity (%) | 86 | 84 | 83 | 87 | 84 | 83 | 82 | 79 | 79 | 81 | 80 | 75 | 80 | 82 | 85 | 82 | 84 | 86 | 86 | 89 | 92 | 91 | 86 | 82 |
| Rain | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Lkly | Lkly | Chc | Chc | Chc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- |
| 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) | 35 | 35 | 33 | 35 | 36 | 38 | 42 | 45 | 48 | 49 | 51 | 52 | 52 | 53 | 53 | 51 | 49 | 47 | 45 | 43 | 41 | 41 | 42 | 42 |
| Dewpoint (°F) | 30 | 30 | 28 | 29 | 29 | 30 | 33 | 34 | 35 | 35 | 36 | 37 | 38 | 39 | 40 | 39 | 39 | 38 | 37 | 36 | 34 | 34 | 33 | 32 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 10 | 10 | 10 | 10 | 10 | 10 | 7 | 7 | 7 | 7 | 7 | 7 | 6 |
| Wind Dir | NNW | NNW | N | N | N | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | N | N | N | N | N | N | NNE | NNE | NNE | NE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 20 | 39 | 16 | 16 | 16 | 11 | 11 | 11 | 7 | 7 | 7 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 |
| 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 (%) | 81 | 81 | 82 | 79 | 76 | 72 | 69 | 65 | 60 | 59 | 57 | 56 | 57 | 59 | 60 | 64 | 68 | 72 | 74 | 75 | 77 | 74 | 70 | 67 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
