| Point Forecast: 4 Miles SW Mount St Helens WA 46.15N 122.23W (Elev. 3337 ft) |
Last Update: 12:41 am PDT Jul 15, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (PDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°F) | 55 | 55 | 55 | 55 | 55 | 54 | 56 | 58 | 61 | 66 | 69 | 73 | 75 | 75 | 77 | 75 | 75 | 74 | 72 | 70 | 67 | 67 | 66 | 65 |
| Dewpoint (°F) | 45 | 44 | 43 | 43 | 42 | 42 | 45 | 47 | 47 | 51 | 52 | 55 | 55 | 54 | 56 | 53 | 53 | 53 | 51 | 49 | 46 | 46 | 45 | 44 |
| Heat Index (°F) | 75 | 75 | 77 | 75 | 75 | |||||||||||||||||||
| Surface Wind (mph) | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 3 | 2 | 2 | 2 | 3 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 |
| Wind Dir | NNE | NNE | NNE | NNE | NE | NE | NE | ENE | S | S | S | S | S | SSW | ESE | SE | E | E | E | NNE | NNE | NNE | ENE | ENE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 18 | 11 | 9 | 8 | 10 | 16 | 10 | 4 | 2 | 2 | 2 | 11 | 18 | 18 | 15 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 5 | 5 |
| 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 (%) | 68 | 67 | 65 | 64 | 62 | 63 | 66 | 66 | 61 | 58 | 54 | 53 | 50 | 48 | 49 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 46 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (PDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°F) | 65 | 64 | 63 | 63 | 62 | 63 | 63 | 64 | 67 | 71 | 74 | 76 | 78 | 80 | 79 | 79 | 78 | 76 | 73 | 71 | 69 | 67 | 65 | 63 |
| Dewpoint (°F) | 43 | 41 | 40 | 40 | 38 | 40 | 41 | 43 | 44 | 47 | 49 | 49 | 50 | 50 | 51 | 52 | 52 | 53 | 51 | 51 | 49 | 48 | 46 | 45 |
| Heat Index (°F) | 76 | 78 | 80 | 79 | 79 | 78 | 76 | |||||||||||||||||
| Surface Wind (mph) | 7 | 9 | 9 | 9 | 9 | 9 | 9 | 6 | 6 | 6 | 3 | 3 | 3 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 |
| Wind Dir | ENE | ENE | ENE | ENE | ENE | ENE | ENE | E | E | E | SSE | SSE | SSE | W | W | W | WNW | WNW | WNW | NW | NW | NW | NW | NW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 5 | 2 | 2 | 2 | 3 | 3 | 3 | 5 | 5 | 5 | 3 | 3 | 3 | 4 | 4 | 4 | 3 | 3 | 3 | 7 | 7 | 7 | 7 | 7 |
| 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 (%) | 44 | 43 | 42 | 42 | 41 | 43 | 44 | 46 | 44 | 43 | 41 | 39 | 37 | 35 | 37 | 39 | 41 | 44 | 46 | 49 | 49 | 50 | 50 | 52 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
