| Point Forecast: Mount St Helens WA 46.18N 122.18W (Elev. 1891 m) |
Last Update: 9:41 pm PDT Jun 9, 2024 |
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| Date | 06/09 | 06/10 | ||||||||||||||||||||||
| Hour (PDT) | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Temperature (°C) | 7 | 6 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 6 | 7 | 8 | 8 | 9 | 9 | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 10 | 8 |
| Dewpoint (°C) | 1 | -1 | -1 | -1 | -2 | -3 | -3 | -6 | -6 | -6 | -6 | -4 | -4 | -4 | -2 | -1 | 0 | 1 | 1 | 1 | 2 | 1 | 2 | -2 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 10 | 9 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 10 | 10 | 10 | 11 | 10 | 10 | 10 | 10 | 10 | 8 | 8 |
| Wind Dir | NW | WNW | NW | WNW | WNW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 8 | 5 | 9 | 10 | 6 | 27 | 23 | 24 | 16 | 15 | 13 | 16 | 1 | 0 | 2 | 6 | 9 | 8 | 7 | 39 | 39 | 39 | 43 | 43 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 64 | 61 | 64 | 64 | 61 | 59 | 56 | 49 | 49 | 43 | 39 | 41 | 40 | 41 | 47 | 48 | 49 | 49 | 50 | 50 | 55 | 53 | 57 | 52 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/11 | |||||||||||||||||||||||
| Hour (PDT) | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Temperature (°C) | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 6 | 6 | 7 | 7 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 4 |
| Dewpoint (°C) | -2 | -3 | -3 | -3 | -2 | -3 | -3 | -3 | -3 | -2 | -2 | -1 | 0 | 1 | 2 | 2 | 3 | 3 | 2 | 1 | 1 | 1 | 0 | -1 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 8 | 6 | 6 | 6 | 5 | 5 | 5 | 6 | 6 | 6 | 8 | 8 | 8 | 11 | 11 | 11 | 14 | 14 | 14 | 18 | 18 | 18 | 18 | 18 |
| Wind Dir | NNW | NNW | NNW | NNW | NNW | NNW | NNW | W | W | W | WSW | WSW | WSW | WSW | WSW | WSW | W | W | W | W | W | W | WNW | WNW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 43 | 30 | 30 | 30 | 11 | 11 | 11 | 34 | 34 | 34 | 60 | 60 | 60 | 77 | 77 | 77 | 57 | 57 | 57 | 30 | 30 | 30 | 23 | 23 |
| Precipitation Potential (%) | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 3 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 50 | 49 | 51 | 52 | 54 | 54 | 54 | 54 | 54 | 55 | 55 | 59 | 63 | 67 | 71 | 75 | 79 | 74 | 69 | 64 | 65 | 67 | 68 | 68 |
| Rain | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
