| Point Forecast: Rio VA 38.07N 78.47W (Elev. 152 m) |
Last Update: 4:53 pm EDT Jul 19, 2026 |
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| Date | 07/19 | 07/20 | ||||||||||||||||||||||
| 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) | 29 | 28 | 26 | 25 | 24 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 22 | 24 | 25 | 26 | 27 | 28 | 28 | 28 | 29 |
| Dewpoint (°C) | 22 | 22 | 23 | 22 | 22 | 21 | 21 | 21 | 20 | 19 | 19 | 19 | 18 | 18 | 19 | 19 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 |
| Heat Index (°C) | 32 | 31 | 26 | 25 | 24 | 24 | 25 | 26 | 29 | 30 | 30 | 31 | 31 | |||||||||||
| Surface Wind (mph) | 5 | 3 | 3 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 |
| Wind Dir | NE | NE | E | NE | NE | NE | N | N | N | N | N | N | N | N | NE | NE | NE | NE | E | E | SE | SE | SE | SE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 78 | 76 | 73 | 76 | 79 | 82 | 76 | 71 | 65 | 60 | 56 | 51 | 53 | 54 | 56 | 60 | 63 | 67 | 62 | 57 | 52 | 52 | 53 | 53 |
| Precipitation Potential (%) | 11 | 11 | 11 | 11 | 11 | 11 | 9 | 9 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 30 | 30 | 30 | 40 | 40 | 40 | 40 |
| Relative Humidity (%) | 63 | 67 | 82 | 85 | 87 | 87 | 90 | 90 | 90 | 87 | 90 | 87 | 87 | 90 | 87 | 84 | 79 | 74 | 72 | 67 | 67 | 67 | 65 | 63 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | -- | -- | -- | -- |
| Date | 07/21 | |||||||||||||||||||||||
| 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 | 26 | 24 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 22 | 23 | 26 | 27 | 29 | 30 | 31 | 31 | 31 | 30 |
| Dewpoint (°C) | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 22 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Heat Index (°C) | 30 | 29 | 26 | 24 | 26 | 31 | 34 | 36 | 37 | 37 | 37 | 36 | ||||||||||||
| Surface Wind (mph) | 6 | 7 | 6 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 3 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 13 | 13 | 13 |
| Wind Dir | SE | SE | S | S | SE | SE | SE | SE | SE | SE | SE | S | S | S | S | S | S | S | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 58 | 63 | 68 | 73 | 77 | 82 | 82 | 82 | 82 | 80 | 78 | 76 | 77 | 77 | 78 | 75 | 73 | 70 | 73 | 75 | 78 | 76 | 75 | 73 |
| Precipitation Potential (%) | 40 | 40 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 19 | 19 | 19 | 19 | 19 | 19 | 77 | 77 | 77 | 77 |
| Relative Humidity (%) | 67 | 69 | 77 | 85 | 90 | 93 | 93 | 97 | 97 | 97 | 100 | 97 | 100 | 100 | 100 | 100 | 91 | 85 | 77 | 72 | 70 | 70 | 70 | 72 |
| Rain | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | Ocnl | Ocnl | Ocnl | Ocnl |
| Thunder | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc |
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