| Point Forecast: Portland OR 45.53N 122.67W (Elev. 200 ft) |
Last Update: 10:43 pm PDT May 21, 2024 |
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| Date | 05/21 | 05/22 | ||||||||||||||||||||||
| Hour (PDT) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°F) | 55 | 54 | 53 | 52 | 50 | 49 | 49 | 47 | 49 | 49 | 50 | 52 | 53 | 55 | 56 | 59 | 59 | 59 | 60 | 59 | 59 | 57 | 54 | 53 |
| Dewpoint (°F) | 52 | 51 | 49 | 48 | 46 | 45 | 46 | 43 | 44 | 43 | 43 | 45 | 45 | 46 | 46 | 47 | 47 | 46 | 47 | 45 | 46 | 45 | 44 | 45 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 6 | 6 | 6 |
| Wind Dir | WSW | W | W | WNW | WNW | W | WSW | WSW | SW | WSW | WSW | W | W | W | W | W | W | W | W | W | W | W | W | W |
| Gust | 18 | 18 | 18 | 20 | 20 | 20 | 20 | 18 | ||||||||||||||||
| Sky Cover (%) | 89 | 76 | 57 | 55 | 57 | 56 | 56 | 55 | 63 | 72 | 75 | 87 | 83 | 77 | 72 | 74 | 77 | 74 | 69 | 69 | 69 | 48 | 48 | 48 |
| Precipitation Potential (%) | 13 | 10 | 9 | 9 | 8 | 11 | 22 | 32 | 45 | 58 | 62 | 72 | 66 | 61 | 56 | 49 | 38 | 30 | 12 | 12 | 12 | 12 | 12 | 12 |
| Relative Humidity (%) | 90 | 88 | 87 | 86 | 85 | 87 | 88 | 87 | 84 | 79 | 78 | 78 | 75 | 72 | 69 | 65 | 64 | 63 | 62 | 60 | 62 | 65 | 70 | 74 |
| Rain | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/23 | |||||||||||||||||||||||
| Hour (PDT) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°F) | 52 | 51 | 50 | 49 | 48 | 48 | 47 | 48 | 49 | 50 | 52 | 55 | 57 | 60 | 62 | 65 | 66 | 66 | 67 | 66 | 64 | 63 | 61 | 58 |
| Dewpoint (°F) | 45 | 45 | 45 | 45 | 45 | 44 | 44 | 44 | 45 | 46 | 46 | 47 | 47 | 47 | 47 | 47 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 |
| Wind Dir | SW | SW | SW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | WSW | WSW | WSW | NW | NW | NW | NNW | NNW | NNW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 46 | 46 | 46 | 59 | 59 | 59 | 60 | 60 | 60 | 62 | 62 | 62 | 55 | 55 | 55 | 38 | 38 | 38 | 34 | 34 | 34 | 51 | 51 | 51 |
| Precipitation Potential (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
| Relative Humidity (%) | 77 | 80 | 84 | 87 | 87 | 88 | 88 | 87 | 86 | 85 | 79 | 74 | 68 | 63 | 58 | 53 | 52 | 51 | 50 | 53 | 55 | 58 | 63 | 69 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
