| Point Forecast: Williamsville VA 38.2N 79.56W (Elev. 515 m) |
Last Update: 9:30 pm EDT Jun 30, 2025 |
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| Date | 07/01 | 07/02 | ||||||||||||||||||||||
| Hour (EDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°C) | 22 | 21 | 20 | 20 | 19 | 19 | 20 | 22 | 24 | 26 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 27 | 25 | 23 | 22 | 21 | 21 | 20 |
| Dewpoint (°C) | 21 | 21 | 20 | 20 | 19 | 19 | 20 | 21 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 21 | 20 |
| Heat Index (°C) | 24 | 26 | 31 | 32 | 33 | 32 | 31 | 31 | 31 | 28 | 25 | |||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 |
| Wind Dir | SW | SW | S | S | SW | SW | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | NE | N | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 47 | 52 | 51 | 56 | 56 | 50 | 58 | 57 | 34 | 37 | 48 | 55 | 66 | 82 | 76 | 72 | 78 | 77 | 87 | 80 | 75 | 71 | 66 | 64 |
| Precipitation Potential (%) | 10 | 9 | 8 | 8 | 9 | 8 | 8 | 9 | 10 | 13 | 24 | 32 | 49 | 72 | 64 | 58 | 61 | 61 | 80 | 27 | 27 | 27 | 27 | 27 |
| Relative Humidity (%) | 98 | 99 | 100 | 100 | 100 | 99 | 100 | 99 | 92 | 86 | 77 | 75 | 73 | 71 | 75 | 75 | 77 | 77 | 86 | 89 | 98 | 100 | 100 | 100 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Ocnl | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | -- | -- |
| Date | 07/03 | |||||||||||||||||||||||
| Hour (EDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°C) | 20 | 19 | 19 | 18 | 18 | 18 | 18 | 19 | 22 | 24 | 27 | 28 | 29 | 29 | 29 | 29 | 28 | 27 | 26 | 24 | 23 | 22 | 20 | 19 |
| Dewpoint (°C) | 20 | 19 | 19 | 18 | 18 | 18 | 18 | 19 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 19 | 19 | 18 | 18 |
| Heat Index (°C) | 24 | 29 | 31 | 31 | 31 | 31 | 31 | 31 | 29 | 26 | 24 | |||||||||||||
| Surface Wind (mph) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 |
| Wind Dir | W | W | NW | NW | NW | NW | N | N | N | N | NW | NW | NW | NW | NW | NW | NW | NW | N | N | N | NW | NW | NW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 61 | 59 | 60 | 60 | 61 | 55 | 48 | 42 | 36 | 29 | 23 | 24 | 26 | 27 | 28 | 30 | 31 | 30 | 30 | 29 | 27 | 24 | 22 | 20 |
| Precipitation Potential (%) | 27 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 15 | 15 | 15 | 15 | 15 | 15 | 3 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 91 | 81 | 72 | 67 | 64 | 62 | 61 | 61 | 63 | 67 | 72 | 78 | 82 | 86 | 89 | 92 |
| Rain | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- |
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