| Point Forecast: 2 Miles S Washington-Dulles International Airport VA 38.93N 77.45W (Elev. 299 ft) |
Last Update: 4:30 pm EDT Jun 26, 2024 |
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| Date | 06/26 | 06/27 | ||||||||||||||||||||||
| Hour (EDT) | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Temperature (°F) | 87 | 83 | 81 | 78 | 75 | 73 | 72 | 71 | 71 | 71 | 70 | 70 | 70 | 72 | 74 | 77 | 79 | 81 | 83 | 84 | 86 | 86 | 86 | 87 |
| Dewpoint (°F) | 69 | 69 | 68 | 69 | 70 | 70 | 69 | 69 | 69 | 69 | 68 | 68 | 69 | 69 | 68 | 68 | 67 | 66 | 65 | 66 | 65 | 65 | 64 | 63 |
| Heat Index (°F) | 91 | 87 | 84 | 78 | 75 | 77 | 79 | 83 | 85 | 86 | 88 | 88 | 87 | 88 | ||||||||||
| Surface Wind (mph) | 7 | 6 | 6 | 7 | 7 | 7 | 6 | 5 | 5 | 5 | 3 | 3 | 5 | 6 | 6 | 6 | 7 | 7 | 6 | 7 | 7 | 7 | 7 | 7 |
| Wind Dir | SW | SW | W | W | NW | W | NW | W | W | W | W | W | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 66 | 67 | 76 | 90 | 94 | 91 | 92 | 94 | 92 | 93 | 92 | 87 | 86 | 84 | 71 | 55 | 49 | 36 | 32 | 27 | 20 | 15 | 13 | 9 |
| Precipitation Potential (%) | 45 | 62 | 62 | 62 | 64 | 64 | 64 | 37 | 37 | 37 | 16 | 16 | 16 | 8 | 8 | 8 | 8 | 8 | 8 | 6 | 6 | 6 | 6 | 6 |
| Relative Humidity (%) | 55 | 63 | 65 | 74 | 84 | 90 | 90 | 93 | 93 | 93 | 93 | 93 | 97 | 90 | 82 | 74 | 67 | 60 | 55 | 55 | 50 | 50 | 48 | 45 |
| Rain | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | Chc | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/28 | |||||||||||||||||||||||
| Hour (EDT) | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Temperature (°F) | 85 | 83 | 79 | 76 | 74 | 72 | 71 | 69 | 67 | 66 | 66 | 66 | 67 | 69 | 72 | 75 | 78 | 81 | 82 | 83 | 85 | 86 | 86 | 86 |
| Dewpoint (°F) | 63 | 63 | 62 | 62 | 62 | 62 | 62 | 61 | 60 | 58 | 57 | 57 | 57 | 56 | 55 | 57 | 60 | 61 | 61 | 62 | 63 | 64 | 64 | 64 |
| Heat Index (°F) | 86 | 84 | 79 | 76 | 75 | 78 | 82 | 83 | 84 | 86 | 87 | 87 | 87 | |||||||||||
| Surface Wind (mph) | 6 | 7 | 6 | 6 | 5 | 5 | 6 | 7 | 7 | 7 | 8 | 7 | 7 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 10 |
| Wind Dir | N | N | N | N | N | N | N | N | N | N | NE | NE | NE | NE | NE | E | E | E | E | SE | SE | SE | SE | SE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 8 | 10 | 10 | 12 | 14 | 16 | 19 | 21 | 23 | 25 | 26 | 27 | 30 | 30 | 30 | 28 | 30 | 32 | 31 | 35 | 37 | 39 | 41 | 44 |
| Precipitation Potential (%) | 6 | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 4 | 4 | 4 | 4 |
| Relative Humidity (%) | 48 | 51 | 56 | 62 | 66 | 71 | 73 | 76 | 78 | 75 | 73 | 73 | 70 | 63 | 55 | 54 | 54 | 51 | 49 | 49 | 48 | 48 | 48 | 48 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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