| Point Forecast: 4 Miles WNW Tyaskin MD 38.35N 75.95W (Elev. 3 ft) |
Last Update: 8:01 pm EDT Aug 18, 2026 |
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| Date | 08/19 | 08/20 | ||||||||||||||||||||||
| Hour (EDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 75 | 75 | 74 | 74 | 74 | 75 | 76 | 78 | 81 | 83 | 84 | 85 | 86 | 86 | 86 | 86 | 85 | 83 | 82 | 80 | 79 | 79 | 78 | 78 |
| Dewpoint (°F) | 72 | 72 | 71 | 71 | 71 | 71 | 71 | 71 | 70 | 69 | 68 | 67 | 66 | 66 | 66 | 66 | 67 | 68 | 68 | 69 | 69 | 70 | 71 | 71 |
| Heat Index (°F) | 79 | 79 | 79 | 80 | 82 | 85 | 87 | 87 | 88 | 88 | 88 | 88 | 88 | 88 | 86 | 85 | 83 | 82 | 82 | 81 | 81 | |||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 6 | 7 | 7 | 8 | 8 | 7 | 7 | 6 | 5 | 3 | 3 | 5 | 5 | 5 | 6 |
| Wind Dir | SE | E | NE | N | N | N | N | N | NW | NW | W | W | W | W | W | W | W | SW | SW | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 21 | 31 | 42 | 41 | 41 | 38 | 36 | 33 | 30 | 27 | 26 | 25 | 24 | 22 | 20 | 19 | 14 | 10 | 6 | 4 | 4 | 4 | 4 | 4 |
| Precipitation Potential (%) | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 4 | 4 | 4 | 4 | 4 |
| Relative Humidity (%) | 90 | 90 | 90 | 90 | 92 | 89 | 87 | 77 | 68 | 63 | 59 | 55 | 51 | 51 | 51 | 52 | 55 | 61 | 64 | 69 | 72 | 74 | 79 | 79 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/21 | |||||||||||||||||||||||
| Hour (EDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 78 | 77 | 77 | 76 | 76 | 77 | 78 | 79 | 81 | 83 | 84 | 85 | 85 | 86 | 86 | 85 | 84 | 83 | 80 | 78 | 76 | 76 | 75 | 74 |
| Dewpoint (°F) | 72 | 72 | 73 | 73 | 72 | 73 | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 72 |
| Heat Index (°F) | 81 | 80 | 81 | 80 | 80 | 81 | 82 | 83 | 86 | 90 | 91 | 92 | 92 | 93 | 93 | 92 | 90 | 89 | 84 | 82 | 80 | 80 | 79 | |
| Surface Wind (mph) | 6 | 5 | 5 | 3 | 3 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 7 | 6 | 5 | 5 | 3 | 3 | 3 | 3 |
| Wind Dir | S | S | S | S | S | S | S | SW | SW | SW | SW | SW | SW | S | S | SE | SE | SE | E | E | N | NW | N | N |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 28 | 30 | 38 | 39 | 39 | 40 | 53 | 53 | 53 | 53 | 63 | 74 | 85 | 85 | 85 | 85 | 85 | 85 | 78 | 78 | 78 | 78 | 78 | 78 |
| Precipitation Potential (%) | 16 | 16 | 16 | 21 | 21 | 21 | 30 | 30 | 30 | 30 | 30 | 30 | 77 | 77 | 77 | 77 | 77 | 77 | 66 | 66 | 66 | 66 | 66 | 66 |
| Relative Humidity (%) | 82 | 85 | 87 | 90 | 87 | 87 | 88 | 85 | 79 | 74 | 72 | 67 | 67 | 65 | 65 | 67 | 70 | 72 | 79 | 85 | 90 | 90 | 94 | 93 |
| Rain | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly |
| Thunder | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc |
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