weather.gov | weather.gov |
 |  |  | |
 |
 | Home | News | Organization |  |
| Point Forecast: Washington-Dulles International Airport VA 38.95N 77.44W (Elev. 285 ft) |
Last Update: 1:32 am EDT Jun 19, 2021 |
 |
|
[show menu] |
| Date | 06/19 | 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) | 72 | 71 | 71 | 71 | 71 | 75 | 79 | 84 | 87 | 88 | 87 | 86 | 86 | 86 | 86 | 85 | 83 | 81 | 79 | 76 | 74 | 73 | 72 | 72 |
| Dewpoint (°F) | 60 | 61 | 61 | 61 | 63 | 64 | 65 | 66 | 66 | 66 | 67 | 66 | 67 | 67 | 66 | 67 | 67 | 68 | 68 | 67 | 68 | 68 | 68 | 67 |
| Heat Index (°F) | 75 | 79 | 86 | 89 | 90 | 90 | 88 | 89 | 89 | 88 | 88 | 86 | 84 | 79 | 76 | |||||||||
| Surface Wind (mph) | 7 | 7 | 6 | 6 | 5 | 6 | 8 | 9 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 10 | 9 | 8 | 7 | 6 | 6 | 5 | 5 | 5 |
| Wind Dir | S | SW | SW | SW | SW | W | W | W | W | W | W | W | W | SW | SW | SW | SW | SW | SW | W | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 88 | 86 | 83 | 82 | 80 | 79 | 81 | 82 | 84 | 83 | 83 | 83 | 82 | 82 | 82 | 70 | 59 | 47 | 50 | 52 | 54 | 56 | 59 | 61 |
| Precipitation Potential (%) | 14 | 14 | 14 | 11 | 11 | 14 | 14 | 14 | 14 | 20 | 20 | 60 | 60 | 39 | 39 | 36 | 36 | 39 | 39 | 39 | 39 | 39 | 39 | 26 |
| Relative Humidity (%) | 66 | 71 | 71 | 71 | 76 | 69 | 62 | 55 | 50 | 48 | 52 | 51 | 53 | 53 | 51 | 55 | 59 | 65 | 69 | 74 | 82 | 84 | 87 | 84 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc |
| Fog | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/21 | |||||||||||||||||||||||
| 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) | 71 | 71 | 70 | 69 | 71 | 74 | 77 | 80 | 83 | 86 | 88 | 89 | 89 | 89 | 88 | 87 | 86 | 84 | 82 | 80 | 78 | 77 | 76 | 75 |
| Dewpoint (°F) | 67 | 67 | 67 | 67 | 68 | 68 | 68 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 |
| Heat Index (°F) | 77 | 83 | 87 | 90 | 92 | 94 | 94 | 94 | 92 | 91 | 90 | 88 | 85 | 83 | 78 | 77 | 76 | 75 | ||||||
| Surface Wind (mph) | 3 | 3 | 3 | 3 | 3 | 5 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 8 | 7 | 6 | 6 | 6 | 6 | 6 | 7 | 7 |
| Wind Dir | W | W | W | W | W | W | W | W | W | SW | SW | SW | SW | SW | SW | SW | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 53 | 83 | 63 | 56 | 58 | 57 | 59 | 62 | 63 | 61 | 58 | 56 | 55 | 52 | 51 | 52 | 53 | 54 | 54 | 53 | 53 | 52 | 49 | 48 |
| Precipitation Potential (%) | 26 | 26 | 26 | 26 | 26 | 28 | 28 | 28 | 28 | 28 | 28 | 31 | 31 | 31 | 31 | 31 | 31 | 17 | 17 | 17 | 17 | 17 | 17 | 14 |
| Relative Humidity (%) | 87 | 87 | 90 | 93 | 90 | 82 | 74 | 69 | 63 | 57 | 54 | 52 | 52 | 52 | 54 | 55 | 57 | 61 | 65 | 69 | 74 | 76 | 79 | 82 |
| Rain | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- |
| Fog | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| ||||||||||||
| Webmaster NOAA's National Weather Service Baltimore, MD/Washington, D.C. | Disclaimer Credits Glossary | Privacy Policy About Us Career Opportunities |