| Point Forecast: Ashburn VA 39.05N 77.49W (Elev. 299 ft) |
Last Update: 7:29 pm EDT Jun 16, 2024 |
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| Date | 06/16 | 06/17 | ||||||||||||||||||||||
| 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) | 83 | 81 | 78 | 75 | 73 | 72 | 71 | 70 | 68 | 68 | 68 | 66 | 68 | 71 | 74 | 79 | 82 | 85 | 87 | 88 | 90 | 90 | 90 | 91 |
| Dewpoint (°F) | 63 | 61 | 60 | 61 | 61 | 61 | 60 | 60 | 59 | 59 | 59 | 59 | 60 | 61 | 62 | 62 | 64 | 64 | 65 | 67 | 67 | 67 | 67 | 67 |
| Heat Index (°F) | 84 | 82 | 78 | 75 | 79 | 83 | 86 | 89 | 91 | 93 | 93 | 93 | 94 | |||||||||||
| Surface Wind (mph) | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 10 |
| Wind Dir | S | S | SE | SE | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 66 | 53 | 40 | 31 | 21 | 17 | 22 | 27 | 25 | 27 | 37 | 29 | 24 | 32 | 34 | 34 | 31 | 39 | 37 | 40 | 35 | 35 | 42 | 42 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 3 | 4 | 5 | 7 | 5 | 5 |
| Relative Humidity (%) | 51 | 51 | 54 | 62 | 66 | 68 | 68 | 71 | 73 | 73 | 73 | 78 | 76 | 71 | 66 | 56 | 55 | 50 | 48 | 50 | 47 | 47 | 47 | 45 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/18 | |||||||||||||||||||||||
| 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) | 90 | 87 | 82 | 79 | 77 | 75 | 74 | 72 | 72 | 70 | 69 | 69 | 70 | 73 | 77 | 82 | 86 | 89 | 91 | 93 | 94 | 94 | 94 | 92 |
| Dewpoint (°F) | 67 | 67 | 66 | 66 | 66 | 65 | 64 | 63 | 63 | 62 | 62 | 64 | 65 | 66 | 67 | 68 | 69 | 69 | 69 | 69 | 68 | 68 | 67 | 67 |
| Heat Index (°F) | 93 | 90 | 84 | 79 | 77 | 75 | 77 | 85 | 90 | 94 | 96 | 98 | 99 | 99 | 98 | 96 | ||||||||
| Surface Wind (mph) | 10 | 9 | 8 | 8 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 8 | 8 | 9 | 9 | 9 |
| Wind Dir | S | S | S | SE | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 36 | 35 | 32 | 29 | 28 | 25 | 26 | 25 | 23 | 24 | 23 | 24 | 22 | 20 | 18 | 13 | 10 | 13 | 19 | 22 | 22 | 21 | 21 | 22 |
| Precipitation Potential (%) | 4 | 4 | 4 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 47 | 52 | 58 | 64 | 69 | 71 | 71 | 73 | 73 | 76 | 78 | 84 | 84 | 79 | 71 | 63 | 57 | 52 | 49 | 46 | 43 | 43 | 41 | 44 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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