| Point Forecast: 4 Miles S Richland WA 46.24N 119.3W (Elev. 568 ft) |
Last Update: 5:52 pm PDT Jul 13, 2025 |
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| Date | 07/13 | 07/14 | ||||||||||||||||||||||
| Hour (PDT) | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Temperature (°F) | 99 | 92 | 87 | 85 | 82 | 80 | 79 | 76 | 74 | 74 | 72 | 76 | 79 | 83 | 87 | 90 | 92 | 94 | 97 | 97 | 98 | 99 | 97 | 94 |
| Dewpoint (°F) | 54 | 52 | 52 | 51 | 51 | 52 | 52 | 52 | 52 | 54 | 52 | 55 | 55 | 56 | 57 | 57 | 56 | 52 | 49 | 51 | 49 | 52 | 47 | 51 |
| Heat Index (°F) | 97 | 89 | 85 | 83 | 81 | 80 | 79 | 76 | 76 | 79 | 82 | 86 | 89 | 90 | 91 | 94 | 94 | 95 | 96 | 93 | 91 | |||
| Surface Wind (mph) | 14 | 14 | 14 | 13 | 13 | 13 | 9 | 9 | 9 | 7 | 7 | 7 | 9 | 9 | 9 | 10 | 10 | 10 | 13 | 13 | 13 | 14 | 14 | 14 |
| Wind Dir | NW | NW | NW | W | W | W | SW | SW | SW | SW | SW | SW | W | W | W | SW | SW | SW | W | W | W | NW | NW | NW |
| Gust | 22 | 22 | 22 | 22 | 22 | 22 | 18 | 18 | 18 | 21 | 21 | 21 | 22 | 22 | 22 | |||||||||
| Sky Cover (%) | 8 | 8 | 8 | 4 | 4 | 4 | 1 | 1 | 1 | 5 | 5 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 2 | 2 | 2 | 4 | 4 | 4 |
| Precipitation Potential (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 |
| Relative Humidity (%) | 22 | 26 | 30 | 31 | 34 | 38 | 39 | 43 | 46 | 49 | 49 | 48 | 44 | 40 | 36 | 33 | 30 | 24 | 20 | 21 | 19 | 21 | 18 | 23 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/15 | |||||||||||||||||||||||
| Hour (PDT) | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Temperature (°F) | 91 | 84 | 81 | 78 | 76 | 74 | 72 | 70 | 69 | 69 | 69 | 70 | 72 | 74 | 77 | 80 | 82 | 84 | 85 | 86 | 87 | 87 | 86 | 85 |
| Dewpoint (°F) | 51 | 49 | 49 | 48 | 49 | 48 | 48 | 48 | 49 | 49 | 50 | 50 | 51 | 51 | 52 | 52 | 52 | 53 | 54 | 54 | 54 | 54 | 53 | 53 |
| Heat Index (°F) | 88 | 82 | 80 | 78 | 76 | 77 | 80 | 81 | 83 | 83 | 84 | 85 | 85 | 84 | 83 | |||||||||
| Surface Wind (mph) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 |
| Wind Dir | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | N | N | N | N | N | N | N | N | N | N | N | N |
| Gust | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Sky Cover (%) | 12 | 12 | 12 | 8 | 8 | 8 | 6 | 6 | 6 | 3 | 3 | 3 | 10 | 10 | 10 | 33 | 33 | 33 | 18 | 18 | 18 | 14 | 14 | 14 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 |
| Relative Humidity (%) | 26 | 30 | 33 | 35 | 38 | 40 | 43 | 46 | 48 | 49 | 50 | 49 | 48 | 45 | 41 | 38 | 36 | 35 | 34 | 33 | 32 | 32 | 32 | 33 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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