| Point Forecast: Langley Park MD 39N 76.98W (Elev. 125 ft) |
Last Update: 1:30 pm EDT May 14, 2024 |
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| Date | 05/14 | 05/15 | ||||||||||||||||||||||
| Hour (EDT) | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |
| Temperature (°F) | 69 | 69 | 68 | 70 | 68 | 68 | 68 | 65 | 65 | 64 | 64 | 63 | 62 | 62 | 62 | 61 | 61 | 60 | 61 | 61 | 61 | 62 | 63 | 63 |
| Dewpoint (°F) | 59 | 59 | 60 | 60 | 61 | 61 | 61 | 62 | 61 | 61 | 61 | 61 | 60 | 59 | 59 | 59 | 59 | 59 | 60 | 61 | 61 | 61 | 61 | 61 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 9 | 9 | 9 | 8 | 8 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 7 | 6 | 7 | 6 | 7 | 7 | 9 | 9 | 9 | 9 | 9 |
| Wind Dir | S | S | S | S | SE | SE | SE | SE | S | S | S | SE | SE | SE | SE | E | E | E | E | E | E | E | E | E |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 93 | 96 | 95 | 95 | 98 | 96 | 94 | 97 | 95 | 95 | 91 | 95 | 96 | 95 | 95 | 97 | 97 | 98 | 96 | 97 | 97 | 97 | 98 | 95 |
| Precipitation Potential (%) | 38 | 52 | 56 | 60 | 64 | 70 | 75 | 74 | 74 | 74 | 75 | 75 | 75 | 87 | 87 | 87 | 83 | 83 | 83 | 86 | 86 | 86 | 86 | 86 |
| Relative Humidity (%) | 70 | 70 | 76 | 71 | 78 | 78 | 78 | 90 | 87 | 90 | 90 | 93 | 93 | 90 | 90 | 93 | 93 | 96 | 97 | 100 | 100 | 97 | 93 | 93 |
| Rain | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Ocnl | Lkly | Lkly | Lkly | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl |
| Thunder | -- | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/16 | |||||||||||||||||||||||
| Hour (EDT) | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |
| Temperature (°F) | 63 | 63 | 64 | 65 | 64 | 64 | 64 | 63 | 62 | 61 | 61 | 61 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 61 | 63 | 65 | 67 |
| Dewpoint (°F) | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 59 | 60 | 60 | 59 | 59 | 58 | 58 | 58 | 57 | 57 | 57 | 58 | 58 | 58 | 58 | 58 | 58 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 8 | 7 | 7 | 8 | 8 | 9 | 10 | 10 | 11 | 13 | 13 |
| Wind Dir | E | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | N | N | N | N | N | N | N | N | N | N | N | N |
| Gust | 18 | 18 | 20 | 20 | ||||||||||||||||||||
| Sky Cover (%) | 94 | 95 | 94 | 94 | 93 | 90 | 88 | 86 | 87 | 88 | 89 | 89 | 88 | 87 | 88 | 88 | 88 | 87 | 84 | 82 | 79 | 77 | 75 | 75 |
| Precipitation Potential (%) | 86 | 78 | 78 | 78 | 78 | 78 | 78 | 52 | 52 | 52 | 52 | 52 | 52 | 24 | 24 | 24 | 24 | 24 | 24 | 21 | 21 | 21 | 21 | 21 |
| Relative Humidity (%) | 90 | 90 | 87 | 84 | 87 | 87 | 87 | 87 | 93 | 97 | 93 | 93 | 93 | 93 | 93 | 90 | 90 | 90 | 93 | 93 | 90 | 84 | 78 | 73 |
| Rain | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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