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| Point Forecast: 3 Miles S Mount St Helens WA 46.14N 122.2W (Elev. 2956 ft) |
Last Update: 3:01 am PST Jan 29, 2022 |
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| Date | 01/29 | 01/30 | ||||||||||||||||||||||
| Hour (PST) | 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 | 35 | 35 | 36 | 37 | 39 | 41 | 43 | 45 | 46 | 46 | 44 | 42 | 40 | 38 | 36 | 35 | 35 | 35 | 35 | 35 | 35 | 36 |
| Dewpoint (°F) | 16 | 21 | 22 | 20 | 19 | 22 | 21 | 23 | 25 | 26 | 27 | 28 | 27 | 26 | 25 | 24 | 23 | 24 | 24 | 25 | 25 | 25 | 26 | 28 |
| Wind Chill (°F) | 33 | 32 | 32 | 32 | 33 | 35 | 37 | 39 | 41 | 44 | 45 | 44 | 43 | 39 | 36 | 34 | 34 | 33 | 32 | 31 | 31 | 31 | 32 | 33 |
| Surface Wind (mph) | 2 | 2 | 2 | 3 | 2 | 3 | 3 | 3 | 3 | 5 | 5 | 5 | 3 | 5 | 5 | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | W | SW | WSW | SW | NE | ENE | E | E | W | W | WSW | W | W | WSW | WSW | W | W | W | W | W | W | W | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 12 | 8 | 8 | 8 | 14 | 14 | 14 | 13 | 13 | 13 | 37 | 37 | 37 | 45 | 45 | 45 | 46 | 46 | 46 | 59 | 59 | 59 | 73 | 73 |
| Precipitation Potential (%) | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 11 | 11 | 11 | 11 | 11 |
| Relative Humidity (%) | 44 | 57 | 58 | 53 | 50 | 54 | 47 | 48 | 48 | 48 | 48 | 49 | 51 | 53 | 55 | 57 | 59 | 61 | 64 | 66 | 67 | 68 | 69 | 72 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 01/31 | |||||||||||||||||||||||
| Hour (PST) | 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) | 37 | 37 | 38 | 37 | 37 | 38 | 39 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 39 | 38 | 37 | 37 | 36 | 35 | 34 | 32 | 31 | 31 |
| Dewpoint (°F) | 29 | 31 | 31 | 31 | 32 | 33 | 35 | 36 | 36 | 35 | 35 | 35 | 36 | 36 | 36 | 35 | 35 | 34 | 33 | 32 | 30 | 29 | 28 | 28 |
| Wind Chill (°F) | 34 | 37 | 38 | 37 | 34 | 35 | 36 | 37 | 38 | 38 | 34 | 34 | 35 | 34 | 33 | 32 | 32 | 31 | 30 | 29 | 27 | 26 | 25 | 24 |
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 5 | 5 | 5 | 3 | 3 | 3 | 8 | 8 | 8 | 9 | 9 | 9 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Wind Dir | S | W | W | W | W | W | W | WSW | WSW | WSW | WSW | WSW | WSW | W | W | W | W | W | W | W | W | W | W | W |
| Gust | 18 | 18 | 18 | |||||||||||||||||||||
| Sky Cover (%) | 73 | 79 | 79 | 79 | 82 | 82 | 82 | 84 | 84 | 84 | 85 | 85 | 85 | 92 | 92 | 92 | 92 | 92 | 92 | 74 | 74 | 74 | 74 | 74 |
| Precipitation Potential (%) | 11 | 39 | 39 | 39 | 39 | 39 | 39 | 71 | 71 | 71 | 71 | 71 | 71 | 82 | 82 | 82 | 82 | 82 | 82 | 43 | 43 | 43 | 43 | 43 |
| Relative Humidity (%) | 74 | 76 | 78 | 79 | 79 | 81 | 85 | 86 | 85 | 84 | 83 | 83 | 84 | 86 | 88 | 89 | 90 | 89 | 89 | 88 | 88 | 88 | 87 | 87 |
| Rain | -- | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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