| Point Forecast: 17 Miles ENE Mount St Helens WA 46.27N 121.86W (Elev. 1473 m) |
Last Update: 2:01 pm PDT Jul 3, 2025 |
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| Date | 07/03 | 07/04 | ||||||||||||||||||||||
| Hour (PDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°C) | 14 | 15 | 15 | 15 | 14 | 13 | 12 | 9 | 8 | 8 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 7 | 8 | 9 | 11 | 12 | 12 | 13 |
| Dewpoint (°C) | 2 | 3 | 3 | 4 | 4 | 5 | 6 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 5 | 6 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 9 |
| Wind Dir | NW | NW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | N | N | N | N | NNW | N | N | NNW | N | N | NNW | WNW | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 12 | 6 | 6 | 3 | 7 | 6 | 7 | 16 | 30 | 39 | 47 | 43 | 46 | 51 | 62 | 65 | 83 | 76 | 71 | 70 | 85 | 81 | 88 | 88 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 3 | 4 | 4 | 4 | 4 | 2 | 4 | 4 |
| Relative Humidity (%) | 43 | 45 | 46 | 48 | 51 | 58 | 65 | 72 | 75 | 79 | 80 | 81 | 81 | 80 | 81 | 81 | 78 | 74 | 71 | 66 | 62 | 62 | 62 | 64 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/05 | |||||||||||||||||||||||
| Hour (PDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°C) | 13 | 13 | 13 | 13 | 12 | 12 | 11 | 9 | 8 | 8 | 7 | 6 | 6 | 5 | 5 | 4 | 5 | 6 | 7 | 8 | 11 | 12 | 13 | 14 |
| Dewpoint (°C) | 6 | 6 | 7 | 7 | 6 | 7 | 7 | 7 | 6 | 6 | 6 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 4 | 4 | 5 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 9 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 9 | 9 | 9 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 |
| Wind Dir | W | WNW | NW | NNW | NNW | NNW | NW | NW | NW | NW | NW | NW | NNW | NNW | NNW | NNW | NNW | NNW | NW | NW | NW | WNW | WNW | WNW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 88 | 88 | 79 | 78 | 78 | 78 | 57 | 57 | 57 | 43 | 43 | 43 | 45 | 45 | 45 | 21 | 21 | 21 | 10 | 10 | 10 | 8 | 8 | 8 |
| Precipitation Potential (%) | 6 | 7 | 8 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 64 | 65 | 67 | 67 | 67 | 70 | 76 | 86 | 89 | 89 | 89 | 88 | 88 | 88 | 89 | 89 | 84 | 79 | 74 | 68 | 62 | 56 | 55 | 53 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
