| Point Forecast: Purcellville VA 39.14N 77.7W (Elev. 548 ft) |
Last Update: 3:34 am EDT May 22, 2024 |
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| Date | 05/22 | 05/23 | ||||||||||||||||||||||
| 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) | 61 | 61 | 62 | 62 | 61 | 66 | 70 | 75 | 79 | 82 | 84 | 85 | 86 | 85 | 84 | 83 | 80 | 78 | 75 | 74 | 73 | 71 | 70 | 69 |
| Dewpoint (°F) | 61 | 60 | 59 | 59 | 60 | 62 | 63 | 65 | 66 | 66 | 66 | 66 | 66 | 66 | 66 | 67 | 68 | 68 | 67 | 67 | 66 | 66 | 65 | 65 |
| Heat Index (°F) | 75 | 79 | 84 | 86 | 87 | 88 | 87 | 86 | 86 | 83 | 78 | 75 | ||||||||||||
| Surface Wind (mph) | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 5 | 5 | 6 | 7 | 7 | 8 | 9 | 9 | 7 | 6 | 6 | 6 | 6 | 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 | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 7 | 11 | 14 | 18 | 18 | 18 | 13 | 21 | 28 | 29 | 34 | 58 | 60 | 56 | 48 | 53 | 54 | 79 | 66 | 62 | 56 | 63 | 68 | 65 |
| Precipitation Potential (%) | 4 | 4 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 5 | 10 | 26 | 26 | 23 | 20 | 24 | 43 | 41 | 39 | 30 | 22 | 14 | 19 |
| Relative Humidity (%) | 100 | 97 | 90 | 90 | 97 | 87 | 78 | 71 | 64 | 58 | 55 | 53 | 51 | 53 | 55 | 59 | 67 | 71 | 76 | 79 | 79 | 84 | 84 | 87 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | SChc | -- | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | SChc | -- | -- |
| Date | 05/24 | |||||||||||||||||||||||
| 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) | 68 | 68 | 67 | 67 | 68 | 70 | 72 | 74 | 76 | 77 | 77 | 78 | 78 | 78 | 77 | 75 | 74 | 71 | 69 | 67 | 66 | 65 | 65 | 65 |
| Dewpoint (°F) | 64 | 64 | 64 | 65 | 66 | 67 | 67 | 68 | 68 | 68 | 68 | 67 | 67 | 67 | 66 | 66 | 65 | 65 | 64 | 64 | 63 | 62 | 62 | 62 |
| Heat Index (°F) | 76 | 77 | 77 | 78 | 78 | 78 | 77 | 75 | ||||||||||||||||
| Surface Wind (mph) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 |
| Wind Dir | SW | SW | W | W | W | W | W | NW | NW | W | W | W | W | SW | SW | SW | SW | W | W | W | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 58 | 68 | 72 | 70 | 70 | 76 | 85 | 89 | 92 | 92 | 91 | 88 | 89 | 90 | 89 | 83 | 81 | 80 | 87 | 87 | 90 | 87 | 81 | 71 |
| Precipitation Potential (%) | 25 | 27 | 34 | 34 | 40 | 31 | 31 | 31 | 56 | 56 | 56 | 81 | 81 | 81 | 70 | 70 | 70 | 60 | 60 | 60 | 46 | 46 | 46 | 32 |
| Relative Humidity (%) | 87 | 87 | 90 | 93 | 93 | 90 | 84 | 82 | 76 | 74 | 74 | 69 | 69 | 69 | 69 | 74 | 74 | 81 | 84 | 90 | 90 | 90 | 90 | 90 |
| Rain | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Ocnl | Ocnl | Ocnl | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | SChc | SChc | SChc | -- |
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