| Point Forecast: Mount St Helens WA 46.18N 122.18W (Elev. 6204 ft) |
Last Update: 9:42 pm PST Feb 15, 2026 |
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| Date | 02/15 | 02/16 | ||||||||||||||||||||||
| Hour (PST) | 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 (°F) | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 24 | 23 | 22 | 20 | 20 | 21 | 21 | 22 | 23 | 22 | 22 | 22 | 21 | 20 | 20 | 19 | 19 |
| Dewpoint (°F) | 20 | 20 | 18 | 19 | 18 | 17 | 17 | 17 | 16 | 12 | 12 | 11 | 14 | 16 | 17 | 19 | 16 | 16 | 15 | 15 | 14 | 13 | 12 | 12 |
| Wind Chill (°F) | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 17 | 16 | 14 | 10 | 9 | 9 | 8 | 9 | 11 | 9 | 9 | 9 | 8 | 7 | 9 | 7 | 7 |
| Surface Wind (mph) | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 8 | 10 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 10 | 10 | 10 |
| Wind Dir | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | W | W | W | W | WSW | WSW | WSW | WSW | WSW | WSW | W | W | W | SW | SW | SW |
| Gust | 18 | 20 | 21 | 22 | 22 | 21 | 21 | 21 | 21 | |||||||||||||||
| Sky Cover (%) | 68 | 69 | 73 | 69 | 70 | 71 | 77 | 77 | 83 | 76 | 79 | 82 | 81 | 84 | 90 | 97 | 88 | 81 | 96 | 96 | 96 | 96 | 96 | 96 |
| Precipitation Potential (%) | 14 | 11 | 12 | 33 | 43 | 40 | 33 | 35 | 39 | 39 | 40 | 57 | 47 | 67 | 85 | 95 | 81 | 59 | 94 | 94 | 94 | 94 | 94 | 94 |
| Relative Humidity (%) | 78 | 78 | 75 | 74 | 71 | 71 | 72 | 73 | 73 | 64 | 70 | 68 | 73 | 82 | 82 | 83 | 77 | 79 | 73 | 78 | 77 | 74 | 74 | 74 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Chc | Lkly | Ocnl | Ocnl | Ocnl | Lkly | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 02/17 | |||||||||||||||||||||||
| Hour (PST) | 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 (°F) | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 20 |
| Dewpoint (°F) | 12 | 12 | 12 | 11 | 11 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 10 | 12 | 12 | 13 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 10 |
| Wind Chill (°F) | 7 | 7 | 7 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 8 | 8 | 9 | 9 | 9 | 11 | 11 | 10 | 12 | 12 | 11 |
| Surface Wind (mph) | 11 | 11 | 11 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 14 | 14 | 14 | 10 | 10 | 10 | 7 | 7 | 7 |
| Wind Dir | SW | SW | SW | SSW | SSW | SSW | S | S | S | S | S | S | SSW | SSW | SSW | SW | SW | SW | SW | SW | SW | WSW | WSW | WSW |
| Gust | 18 | 18 | 18 | 18 | 18 | 18 | 21 | 21 | 21 | 21 | 21 | 21 | ||||||||||||
| Sky Cover (%) | 82 | 82 | 82 | 82 | 82 | 82 | 87 | 87 | 87 | 87 | 87 | 87 | 97 | 97 | 97 | 97 | 97 | 97 | 88 | 88 | 88 | 88 | 88 | 88 |
| Precipitation Potential (%) | 73 | 73 | 73 | 73 | 73 | 73 | 80 | 80 | 80 | 80 | 80 | 80 | 95 | 95 | 95 | 95 | 95 | 95 | 81 | 81 | 81 | 81 | 81 | 81 |
| Relative Humidity (%) | 74 | 73 | 73 | 72 | 72 | 73 | 73 | 72 | 71 | 70 | 68 | 67 | 66 | 67 | 68 | 68 | 66 | 63 | 61 | 62 | 64 | 66 | 65 | 64 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
