| Point Forecast: 3 Miles W Fairfax VA 38.85N 77.35W (Elev. 122 m) |
Last Update: 4:30 pm EDT Jul 14, 2025 |
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| Date | 07/14 | 07/15 | ||||||||||||||||||||||
| 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) | 27 | 26 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 29 | 29 | 29 | 28 |
| Dewpoint (°C) | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 |
| Heat Index (°C) | 31 | 26 | 24 | 24 | 24 | 24 | 24 | 25 | 26 | 30 | 32 | 33 | 34 | 34 | 34 | 32 | ||||||||
| Surface Wind (mph) | 5 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 5 | 5 | 3 | 5 |
| Wind Dir | S | SE | NW | NW | N | NE | SE | S | W | NW | NW | W | N | N | NE | NE | NW | N | NE | E | E | SE | SE | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 92 | 93 | 88 | 80 | 77 | 77 | 73 | 69 | 67 | 62 | 65 | 59 | 77 | 65 | 69 | 60 | 57 | 60 | 51 | 53 | 55 | 63 | 69 | 77 |
| Precipitation Potential (%) | 87 | 77 | 56 | 59 | 59 | 38 | 21 | 20 | 19 | 15 | 13 | 12 | 11 | 9 | 16 | 15 | 15 | 14 | 16 | 22 | 33 | 44 | 53 | 65 |
| Relative Humidity (%) | 82 | 91 | 97 | 94 | 94 | 97 | 97 | 97 | 93 | 97 | 97 | 97 | 100 | 100 | 94 | 87 | 85 | 79 | 74 | 74 | 72 | 72 | 72 | 77 |
| Rain | Ocnl | Ocnl | Lkly | Lkly | Lkly | Chc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | SChc | SChc | SChc | -- | SChc | SChc | Chc | Chc | Chc | Lkly |
| Thunder | Lkly | Lkly | Chc | Chc | Chc | Chc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc |
| Date | 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) | 28 | 27 | 27 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 26 | 27 | 28 | 29 | 30 | 31 | 31 | 31 | 30 |
| Dewpoint (°C) | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Heat Index (°C) | 32 | 31 | 29 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 26 | 31 | 33 | 34 | 36 | 37 | 37 | 37 | 36 | |||
| Surface Wind (mph) | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 |
| 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 (%) | 68 | 71 | 72 | 58 | 54 | 50 | 51 | 52 | 53 | 57 | 60 | 64 | 65 | 67 | 68 | 63 | 58 | 53 | 62 | 71 | 80 | 80 | 80 | 80 |
| Precipitation Potential (%) | 52 | 52 | 21 | 21 | 21 | 21 | 21 | 21 | 14 | 14 | 14 | 14 | 14 | 14 | 19 | 19 | 19 | 19 | 19 | 19 | 69 | 69 | 69 | 69 |
| Relative Humidity (%) | 79 | 82 | 85 | 88 | 88 | 90 | 90 | 94 | 94 | 97 | 97 | 97 | 97 | 94 | 94 | 91 | 82 | 80 | 75 | 72 | 70 | 70 | 70 | 72 |
| Rain | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Lkly | Lkly | Lkly | Lkly |
| Thunder | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc |
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