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| Point Forecast: Washington DC 38.89N 77.02W (Elev. 20 ft) |
Last Update: 1:32 pm EDT Jun 15, 2021 |
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| Date | 06/15 | 06/16 | ||||||||||||||||||||||
| Hour (EDT) | 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 (°F) | 78 | 79 | 80 | 79 | 79 | 78 | 75 | 72 | 70 | 69 | 68 | 67 | 66 | 65 | 64 | 63 | 62 | 63 | 65 | 67 | 71 | 73 | 75 | 76 |
| Dewpoint (°F) | 59 | 58 | 57 | 57 | 58 | 59 | 59 | 59 | 60 | 60 | 58 | 58 | 57 | 56 | 56 | 56 | 54 | 54 | 54 | 54 | 53 | 53 | 52 | 50 |
| Heat Index (°F) | 78 | 79 | 80 | 79 | 79 | 78 | 75 | 75 | 76 | |||||||||||||||
| Surface Wind (mph) | 10 | 10 | 10 | 10 | 9 | 8 | 6 | 5 | 3 | 3 | 5 | 3 | 3 | 3 | 3 | 2 | 3 | 5 | 5 | 6 | 6 | 6 | 7 | 8 |
| Wind Dir | NW | NW | NW | NW | NW | NW | NW | NW | NW | W | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW |
| Gust | 18 | |||||||||||||||||||||||
| Sky Cover (%) | 37 | 37 | 36 | 29 | 24 | 23 | 27 | 21 | 23 | 24 | 26 | 28 | 30 | 31 | 30 | 36 | 32 | 23 | 24 | 17 | 11 | 10 | 13 | 15 |
| Precipitation Potential (%) | 12 | 12 | 12 | 12 | 12 | 12 | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 52 | 49 | 45 | 47 | 49 | 52 | 58 | 64 | 71 | 73 | 70 | 73 | 73 | 73 | 75 | 78 | 75 | 72 | 68 | 63 | 53 | 49 | 45 | 40 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/17 | |||||||||||||||||||||||
| Hour (EDT) | 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 (°F) | 77 | 77 | 78 | 78 | 77 | 76 | 74 | 71 | 69 | 66 | 64 | 63 | 62 | 61 | 59 | 59 | 59 | 60 | 62 | 65 | 69 | 72 | 74 | 76 |
| Dewpoint (°F) | 51 | 50 | 50 | 49 | 49 | 49 | 50 | 51 | 52 | 52 | 52 | 51 | 50 | 49 | 48 | 48 | 49 | 49 | 50 | 50 | 49 | 48 | 48 | 47 |
| Heat Index (°F) | 77 | 77 | 78 | 78 | 77 | 76 | 76 | |||||||||||||||||
| Surface Wind (mph) | 8 | 8 | 9 | 8 | 7 | 6 | 5 | 3 | 2 | 2 | 2 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 5 | 5 | 6 | 6 | 6 |
| Wind Dir | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | N | N | N | NW | NW | NW | NW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 17 | 11 | 7 | 5 | 4 | 7 | 9 | 12 | 16 | 18 | 19 | 23 | 24 | 22 | 18 | 16 | 14 | 11 | 9 | 8 | 6 | 4 | 5 | 7 |
| Precipitation Potential (%) | 7 | 7 | 7 | 7 | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 40 | 39 | 37 | 36 | 37 | 39 | 43 | 49 | 55 | 61 | 65 | 65 | 65 | 65 | 67 | 67 | 69 | 67 | 65 | 58 | 49 | 42 | 40 | 36 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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