| Point Forecast: 2 Miles S Washington-Dulles International Airport VA 38.93N 77.45W (Elev. 299 ft) |
Last Update: 1:29 am EDT Jun 18, 2025 |
 |
|
[show menu] |
| Date | 06/18 | 06/19 | ||||||||||||||||||||||
| Hour (EDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 72 | 72 | 71 | 72 | 72 | 74 | 78 | 81 | 83 | 85 | 87 | 87 | 88 | 88 | 87 | 87 | 86 | 83 | 81 | 79 | 77 | 76 | 75 | 75 |
| Dewpoint (°F) | 71 | 71 | 70 | 70 | 71 | 72 | 73 | 74 | 74 | 73 | 73 | 73 | 73 | 74 | 74 | 74 | 74 | 76 | 75 | 75 | 74 | 74 | 73 | 73 |
| Heat Index (°F) | 78 | 86 | 90 | 92 | 94 | 94 | 96 | 97 | 95 | 95 | 94 | 91 | 87 | 79 | 77 | 76 | 75 | 75 | ||||||
| Surface Wind (mph) | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 6 | 6 | 7 | 8 | 9 | 9 | 8 | 8 | 7 | 6 | 5 | 5 | 3 | 3 | 3 | 5 | 5 |
| Wind Dir | S | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 66 | 77 | 73 | 79 | 74 | 75 | 46 | 30 | 26 | 24 | 33 | 55 | 58 | 62 | 45 | 36 | 28 | 29 | 14 | 6 | 10 | 6 | 3 | 5 |
| Precipitation Potential (%) | 20 | 16 | 14 | 14 | 18 | 19 | 18 | 24 | 29 | 34 | 42 | 51 | 54 | 59 | 49 | 39 | 34 | 8 | 7 | 6 | 6 | 6 | 6 | 2 |
| Relative Humidity (%) | 97 | 97 | 97 | 93 | 97 | 93 | 85 | 79 | 74 | 67 | 63 | 63 | 61 | 63 | 65 | 65 | 68 | 80 | 82 | 88 | 90 | 94 | 94 | 94 |
| Rain | SChc | SChc | -- | -- | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Lkly | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/20 | |||||||||||||||||||||||
| Hour (EDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 74 | 74 | 74 | 73 | 74 | 78 | 81 | 84 | 86 | 88 | 90 | 90 | 89 | 87 | 84 | 82 | 80 | 78 | 76 | 75 | 73 | 72 | 70 | 69 |
| Dewpoint (°F) | 72 | 72 | 71 | 71 | 71 | 73 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 73 | 72 | 71 | 70 | 69 | 68 | 67 | 66 |
| Heat Index (°F) | 78 | 86 | 91 | 94 | 97 | 99 | 99 | 98 | 95 | 91 | 88 | 84 | 78 | 76 | 75 | |||||||||
| Surface Wind (mph) | 5 | 5 | 6 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 9 | 8 | 8 | 7 | 7 | 7 | 6 | 6 |
| Wind Dir | S | SW | SW | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | W | NW | NW |
| Gust | 18 | 20 | 21 | 22 | 22 | 21 | 20 | 18 | ||||||||||||||||
| Sky Cover (%) | 1 | 11 | 19 | 21 | 8 | 6 | 6 | 10 | 14 | 20 | 27 | 33 | 40 | 47 | 54 | 59 | 64 | 69 | 60 | 51 | 42 | 33 | 25 | 16 |
| Precipitation Potential (%) | 2 | 2 | 2 | 2 | 2 | 12 | 12 | 12 | 12 | 12 | 12 | 77 | 77 | 77 | 77 | 77 | 77 | 23 | 23 | 23 | 23 | 23 | 23 | 1 |
| Relative Humidity (%) | 93 | 93 | 90 | 93 | 90 | 85 | 79 | 72 | 68 | 63 | 60 | 60 | 61 | 65 | 72 | 77 | 79 | 82 | 85 | 84 | 87 | 87 | 90 | 90 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | SChc | SChc | SChc | SChc | SChc | SChc | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Lkly | Lkly | Lkly | SChc | SChc | SChc | -- | -- | -- | -- |
| ||||||||||||