| Point Forecast: Lorton VA 38.71N 77.26W (Elev. 76 m) |
Last Update: 1:31 pm EDT Jul 15, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (EDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°C) | 31 | 29 | 28 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 25 | 26 | 28 | 28 | 29 | 30 | 31 | 31 | 31 | 30 |
| Dewpoint (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 25 | 25 | 26 | 26 | 25 | 25 | 25 | 25 |
| Heat Index (°C) | 37 | 34 | 32 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 26 | 32 | 33 | 36 | 37 | 37 | 38 | 37 | 36 | ||
| Surface Wind (mph) | 6 | 5 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 5 | 6 | 6 | 6 | 7 | 8 | 9 | 10 | 10 | 10 | 10 |
| 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 (%) | 61 | 58 | 53 | 44 | 38 | 44 | 45 | 49 | 58 | 47 | 58 | 41 | 48 | 56 | 53 | 54 | 55 | 67 | 69 | 67 | 61 | 70 | 78 | 72 |
| Precipitation Potential (%) | 32 | 24 | 11 | 8 | 11 | 10 | 6 | 4 | 6 | 6 | 8 | 7 | 9 | 6 | 6 | 10 | 18 | 18 | 27 | 28 | 30 | 36 | 59 | 58 |
| Relative Humidity (%) | 70 | 77 | 77 | 88 | 94 | 97 | 97 | 94 | 94 | 94 | 97 | 94 | 97 | 97 | 94 | 91 | 85 | 82 | 80 | 77 | 72 | 70 | 72 | 75 |
| Rain | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc | Lkly | Lkly |
| Thunder | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Lkly | Lkly |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (EDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°C) | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 27 | 29 | 31 | 32 | 33 | 33 | 33 | 33 | 33 |
| Dewpoint (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Heat Index (°C) | 33 | 31 | 29 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 31 | 34 | 37 | 38 | 39 | 41 | 41 | 39 | 39 |
| Surface Wind (mph) | 9 | 8 | 7 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 |
| Wind Dir | S | SW | S | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 78 | 79 | 75 | 65 | 67 | 69 | 69 | 70 | 70 | 65 | 61 | 56 | 50 | 43 | 37 | 37 | 38 | 38 | 44 | 49 | 55 | 55 | 55 | 55 |
| Precipitation Potential (%) | 67 | 68 | 17 | 17 | 17 | 17 | 17 | 17 | 4 | 4 | 4 | 4 | 4 | 4 | 7 | 7 | 7 | 7 | 7 | 7 | 33 | 33 | 33 | 33 |
| Relative Humidity (%) | 80 | 85 | 85 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 87 | 87 | 87 | 88 | 88 | 82 | 77 | 70 | 66 | 62 | 60 | 60 | 58 | 60 |
| Rain | Lkly | Lkly | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc |
| Thunder | Lkly | Lkly | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc |
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