| Point Forecast: Fairfax VA 38.85N 77.29W (Elev. 122 m) |
Last Update: 10:30 pm EDT May 23, 2024 |
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| Date | 05/24 | |||||||||||||||||||||||
| Hour (EDT) | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Temperature (°C) | 21 | 21 | 21 | 20 | 19 | 19 | 19 | 19 | 21 | 22 | 23 | 24 | 26 | 26 | 27 | 27 | 27 | 28 | 27 | 26 | 24 | 23 | 22 | 21 |
| Dewpoint (°C) | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 18 | 18 |
| Heat Index (°C) | 24 | 26 | 26 | 28 | 28 | 28 | 28 | 28 | 26 | 24 | ||||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 |
| Wind Dir | W | W | NW | NW | NW | NW | NW | N | N | N | N | N | N | N | N | N | NW | NW | N | E | E | SE | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 81 | 71 | 72 | 76 | 82 | 77 | 70 | 62 | 49 | 62 | 51 | 52 | 47 | 41 | 35 | 21 | 19 | 19 | 18 | 22 | 25 | 28 | 35 | 41 |
| Precipitation Potential (%) | 44 | 44 | 46 | 46 | 46 | 24 | 24 | 24 | 16 | 16 | 16 | 20 | 20 | 20 | 21 | 21 | 21 | 10 | 10 | 10 | 5 | 5 | 5 | 4 |
| Relative Humidity (%) | 87 | 87 | 87 | 90 | 93 | 90 | 93 | 93 | 87 | 81 | 74 | 64 | 60 | 56 | 51 | 51 | 51 | 49 | 53 | 58 | 66 | 76 | 81 | 84 |
| Rain | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- |
| Thunder | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/25 | |||||||||||||||||||||||
| Hour (EDT) | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Temperature (°C) | 21 | 20 | 19 | 19 | 18 | 18 | 19 | 19 | 21 | 22 | 23 | 24 | 24 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 24 | 23 | 22 | 21 |
| Dewpoint (°C) | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 18 | 18 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Heat Index (°C) | 24 | 24 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 24 | ||||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 3 | 3 |
| Wind Dir | S | S | S | S | SE | E | E | SE | SE | SE | SE | SE | SE | S | S | S | SE | SE | SE | SE | SE | SE | SE | SE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 43 | 48 | 50 | 53 | 58 | 60 | 62 | 67 | 69 | 70 | 71 | 71 | 71 | 72 | 72 | 68 | 59 | 54 | 51 | 45 | 42 | 42 | 41 | 41 |
| Precipitation Potential (%) | 4 | 4 | 16 | 16 | 16 | 16 | 16 | 16 | 32 | 32 | 32 | 32 | 32 | 32 | 46 | 46 | 46 | 46 | 46 | 46 | 41 | 41 | 41 | 41 |
| Relative Humidity (%) | 87 | 87 | 90 | 93 | 93 | 93 | 90 | 90 | 87 | 84 | 79 | 74 | 69 | 67 | 64 | 62 | 60 | 60 | 60 | 62 | 66 | 71 | 79 | 84 |
| Rain | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | 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 | Chc | Chc | Chc | SChc |
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