| Point Forecast: Mount St Helens WA 46.18N 122.18W (Elev. 6204 ft) |
Last Update: 9:20 pm PDT Jul 14, 2025 |
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| Date | 07/14 | 07/15 | ||||||||||||||||||||||
| Hour (PDT) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 52 | 50 | 50 | 50 | 50 | 50 | 50 | 49 | 49 | 49 | 52 | 54 | 55 | 58 | 59 | 61 | 62 | 63 | 64 | 65 | 65 | 65 | 64 | 63 |
| Dewpoint (°F) | 34 | 35 | 34 | 35 | 35 | 35 | 35 | 34 | 35 | 34 | 35 | 36 | 37 | 39 | 41 | 44 | 44 | 45 | 45 | 41 | 41 | 41 | 40 | 40 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 14 | 13 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 8 | 7 | 6 | 6 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 8 |
| Wind Dir | NW | NNW | N | N | N | N | N | N | N | N | NNE | NNE | NE | ENE | ENE | E | ENE | ENE | ENE | ENE | ENE | ENE | ENE | NNE |
| Gust | 18 | |||||||||||||||||||||||
| Sky Cover (%) | 16 | 14 | 17 | 17 | 19 | 13 | 8 | 6 | 8 | 12 | 7 | 1 | 1 | 2 | 2 | 7 | 14 | 13 | 18 | 9 | 12 | 12 | 12 | 15 |
| Precipitation Potential (%) | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 51 | 56 | 55 | 57 | 56 | 56 | 56 | 56 | 58 | 55 | 52 | 51 | 50 | 49 | 51 | 54 | 52 | 51 | 50 | 42 | 42 | 42 | 42 | 42 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/16 | |||||||||||||||||||||||
| Hour (PDT) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 60 | 59 | 57 | 56 | 56 | 55 | 55 | 54 | 54 | 56 | 58 | 60 | 62 | 63 | 65 | 66 | 67 | 68 | 68 | 68 | 68 | 67 | 66 | 65 |
| Dewpoint (°F) | 37 | 36 | 34 | 33 | 33 | 32 | 31 | 30 | 30 | 31 | 33 | 34 | 35 | 37 | 39 | 40 | 41 | 42 | 42 | 43 | 43 | 42 | 42 | 41 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 8 | 8 | 10 | 10 | 10 | 14 | 14 | 14 | 14 | 14 | 14 | 10 | 10 | 10 | 6 | 6 | 6 | 5 | 5 | 5 | 8 | 8 | 8 | 8 |
| Wind Dir | NNE | NNE | NE | NE | NE | E | E | E | E | E | E | ESE | ESE | ESE | S | S | S | W | W | W | W | W | W | WNW |
| Gust | 18 | 18 | 18 | |||||||||||||||||||||
| Sky Cover (%) | 15 | 15 | 6 | 6 | 6 | 2 | 2 | 2 | 3 | 3 | 3 | 2 | 2 | 2 | 3 | 3 | 3 | 6 | 6 | 6 | 3 | 3 | 3 | 8 |
| 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 (%) | 42 | 42 | 42 | 42 | 41 | 41 | 40 | 40 | 39 | 38 | 38 | 37 | 37 | 38 | 38 | 38 | 39 | 39 | 39 | 40 | 40 | 40 | 41 | 41 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
