| Point Forecast: Mount Vernon VA 38.72N 77.08W (Elev. 13 ft) |
Last Update: 1:30 am EDT Jun 20, 2024 |
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| Date | 06/20 | 06/21 | ||||||||||||||||||||||
| Hour (EDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 70 | 69 | 69 | 68 | 67 | 70 | 75 | 78 | 81 | 83 | 85 | 88 | 89 | 89 | 90 | 90 | 89 | 87 | 85 | 82 | 78 | 77 | 75 | 74 |
| Dewpoint (°F) | 65 | 65 | 65 | 64 | 64 | 65 | 68 | 67 | 67 | 66 | 65 | 64 | 63 | 62 | 61 | 61 | 62 | 63 | 65 | 65 | 65 | 66 | 65 | 66 |
| Heat Index (°F) | 75 | 78 | 83 | 85 | 87 | 89 | 90 | 89 | 90 | 90 | 89 | 88 | 87 | 84 | 78 | 77 | 75 | |||||||
| Surface Wind (mph) | 3 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 5 | 3 |
| Wind Dir | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 49 | 48 | 44 | 42 | 38 | 33 | 37 | 37 | 37 | 35 | 32 | 30 | 36 | 39 | 37 | 38 | 34 | 28 | 28 | 21 | 18 | 17 | 13 | 8 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 84 | 87 | 87 | 87 | 90 | 84 | 79 | 69 | 63 | 57 | 51 | 45 | 42 | 41 | 38 | 38 | 41 | 45 | 51 | 56 | 64 | 69 | 71 | 76 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/22 | |||||||||||||||||||||||
| Hour (EDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 73 | 72 | 71 | 70 | 70 | 72 | 76 | 80 | 83 | 86 | 89 | 90 | 92 | 93 | 94 | 94 | 93 | 91 | 89 | 86 | 83 | 80 | 78 | 78 |
| Dewpoint (°F) | 66 | 65 | 65 | 65 | 65 | 66 | 67 | 67 | 66 | 66 | 66 | 65 | 64 | 63 | 63 | 63 | 64 | 65 | 66 | 67 | 67 | 67 | 67 | 67 |
| Heat Index (°F) | 76 | 82 | 85 | 88 | 92 | 92 | 94 | 94 | 95 | 95 | 95 | 93 | 92 | 89 | 86 | 82 | 78 | 78 | ||||||
| Surface Wind (mph) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 3 | 3 |
| Wind Dir | S | S | S | S | S | S | SW | SW | S | S | S | S | S | S | S | S | S | S | S | SE | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 6 | 4 | 6 | 9 | 10 | 10 | 10 | 11 | 12 | 13 | 12 | 11 | 10 | 9 | 9 | 9 | 10 | 10 | 11 | 12 | 11 | 13 | 16 | 18 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 3 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 79 | 79 | 81 | 84 | 84 | 81 | 74 | 65 | 57 | 51 | 47 | 44 | 40 | 37 | 36 | 36 | 38 | 42 | 47 | 53 | 59 | 65 | 69 | 69 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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