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| Point Forecast: 3 Miles S Mount St Helens WA 46.14N 122.2W (Elev. 901 m) |
Last Update: 12:01 pm PDT May 27, 2022 |
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| Date | 05/27 | 05/28 | ||||||||||||||||||||||
| Hour (PDT) | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 |
| Temperature (°C) | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 |
| Dewpoint (°C) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 |
| Wind Chill (°C) | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 4 | 4 | 4 | 6 | 6 | 6 | 3 | 3 | 3 | 4 | 5 | 6 | 5 |
| Surface Wind (mph) | 8 | 10 | 11 | 10 | 10 | 9 | 9 | 9 | 6 | 6 | 6 | 5 | 5 | 5 | 2 | 2 | 2 | 8 | 8 | 8 | 6 | 6 | 6 | 7 |
| Wind Dir | SW | SW | WSW | WSW | WSW | W | W | W | W | W | W | WNW | WNW | WNW | WSW | WSW | WSW | S | S | S | ESE | ESE | ESE | SSE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 85 | 91 | 91 | 90 | 89 | 88 | 83 | 71 | 76 | 73 | 72 | 66 | 67 | 56 | 85 | 85 | 85 | 92 | 92 | 92 | 100 | 100 | 100 | 100 |
| Precipitation Potential (%) | 71 | 71 | 71 | 71 | 71 | 48 | 48 | 48 | 37 | 37 | 37 | 22 | 22 | 22 | 22 | 22 | 22 | 16 | 16 | 16 | 75 | 75 | 75 | 100 |
| Relative Humidity (%) | 86 | 89 | 88 | 90 | 91 | 90 | 88 | 92 | 88 | 87 | 86 | 86 | 85 | 84 | 83 | 84 | 84 | 85 | 84 | 84 | 85 | 87 | 90 | 92 |
| Rain | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | Ocnl | Ocnl | Ocnl | Ocnl |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/29 | |||||||||||||||||||||||
| Hour (PDT) | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 |
| Temperature (°C) | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Dewpoint (°C) | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 4 | 4 |
| Wind Chill (°C) | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 2 | 3 | 3 | 3 | 2 |
| Surface Wind (mph) | 7 | 7 | 14 | 14 | 14 | 13 | 13 | 13 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 8 | 11 |
| Wind Dir | SSE | SSE | ESE | ESE | ESE | S | S | S | WSW | WSW | WSW | W | W | W | W | W | W | W | W | W | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 99 | 99 | 98 | 98 | 98 | 90 | 90 | 90 | 86 | 86 | 86 | 86 | 86 | 86 | 90 |
| Precipitation Potential (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 94 | 94 | 94 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 72 |
| Relative Humidity (%) | 93 | 94 | 95 | 96 | 97 | 97 | 96 | 95 | 93 | 91 | 89 | 87 | 85 | 84 | 83 | 83 | 83 | 83 | 83 | 84 | 85 | 87 | 90 | 93 |
| Rain | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Lkly |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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