| Point Forecast: Mc Lean VA 38.95N 77.19W (Elev. 253 ft) |
Last Update: 7:58 am EDT May 5, 2024 |
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| Date | 05/05 | 05/06 | ||||||||||||||||||||||
| Hour (EDT) | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |
| Temperature (°F) | 59 | 61 | 63 | 64 | 65 | 66 | 68 | 68 | 68 | 67 | 66 | 65 | 67 | 67 | 66 | 66 | 66 | 65 | 65 | 65 | 65 | 65 | 66 | 68 |
| Dewpoint (°F) | 58 | 60 | 61 | 62 | 63 | 63 | 63 | 63 | 63 | 64 | 64 | 64 | 63 | 63 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 65 | 66 | 66 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 7 | 7 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 5 |
| Wind Dir | SE | SE | SE | S | S | S | S | S | S | SE | SE | SE | SE | S | S | S | S | S | S | S | S | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 98 | 98 | 98 | 97 | 97 | 93 | 89 | 88 | 83 | 84 | 84 | 85 | 87 | 89 | 88 | 88 | 91 | 91 | 92 | 92 | 92 | 92 | 91 | 92 |
| Precipitation Potential (%) | 90 | 85 | 80 | 72 | 58 | 51 | 42 | 34 | 36 | 30 | 34 | 31 | 33 | 29 | 27 | 21 | 15 | 12 | 12 | 10 | 11 | 11 | 10 | 10 |
| Relative Humidity (%) | 96 | 97 | 93 | 93 | 93 | 90 | 84 | 84 | 84 | 90 | 93 | 97 | 87 | 87 | 93 | 93 | 93 | 97 | 97 | 97 | 97 | 100 | 100 | 93 |
| Rain | Ocnl | Ocnl | Ocnl | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/07 | |||||||||||||||||||||||
| Hour (EDT) | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |
| Temperature (°F) | 69 | 71 | 73 | 76 | 77 | 78 | 78 | 77 | 76 | 75 | 74 | 72 | 71 | 69 | 68 | 67 | 66 | 65 | 64 | 64 | 64 | 65 | 66 | 68 |
| Dewpoint (°F) | 66 | 66 | 66 | 65 | 64 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 62 | 62 | 62 | 63 | 63 | 63 |
| Heat Index (°F) | 76 | 77 | 78 | 78 | 77 | 76 | 75 | |||||||||||||||||
| Surface Wind (mph) | 5 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 3 | 3 | 2 | 2 | 1 | 1 | 0 | 1 | 2 | 3 | 3 |
| Wind Dir | SW | W | W | W | W | W | W | W | W | W | W | W | NW | W | SW | W | NW | NW | W | N | NE | N | NE | NE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 93 | 91 | 86 | 80 | 77 | 78 | 81 | 85 | 85 | 83 | 81 | 79 | 77 | 77 | 77 | 78 | 80 | 82 | 83 | 84 | 84 | 82 | 81 | 80 |
| Precipitation Potential (%) | 10 | 6 | 6 | 6 | 41 | 41 | 41 | 41 | 41 | 41 | 44 | 44 | 44 | 44 | 44 | 44 | 26 | 26 | 26 | 26 | 26 | 26 | 13 | 13 |
| Relative Humidity (%) | 90 | 84 | 79 | 69 | 64 | 60 | 60 | 62 | 64 | 66 | 69 | 73 | 76 | 81 | 84 | 87 | 90 | 93 | 93 | 93 | 93 | 93 | 90 | 84 |
| Rain | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- |
| Thunder | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- |
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