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| Point Forecast: Cumberland MD 39.66N 78.77W (Elev. 217 m) |
Last Update: 7:29 am EDT Aug 18, 2022 |
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| Date | 08/18 | 08/19 | ||||||||||||||||||||||
| Hour (EDT) | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 |
| Temperature (°C) | 18 | 21 | 23 | 26 | 27 | 27 | 27 | 28 | 27 | 27 | 26 | 23 | 22 | 21 | 19 | 18 | 18 | 17 | 17 | 16 | 16 | 15 | 16 | 17 |
| Dewpoint (°C) | 16 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 15 | 16 |
| Heat Index (°C) | 26 | 27 | 27 | 28 | 28 | 28 | 27 | 26 | ||||||||||||||||
| Surface Wind (mph) | 0 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 2 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 1 |
| Wind Dir | S | S | SW | W | W | W | W | W | W | W | W | NW | NW | NW | NW | N | N | N | NW | NW | NW | N | N | N |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 34 | 30 | 27 | 27 | 40 | 45 | 45 | 47 | 51 | 46 | 43 | 34 | 33 | 31 | 34 | 31 | 23 | 16 | 13 | 11 | 11 | 13 | 10 | 8 |
| Precipitation Potential (%) | 0 | 0 | 0 | 9 | 9 | 19 | 19 | 19 | 19 | 19 | 19 | 4 | 4 | 4 | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Relative Humidity (%) | 87 | 76 | 66 | 54 | 51 | 51 | 49 | 47 | 49 | 51 | 56 | 64 | 71 | 76 | 84 | 87 | 90 | 90 | 90 | 93 | 93 | 96 | 93 | 93 |
| Rain | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/20 | |||||||||||||||||||||||
| Hour (EDT) | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 |
| Temperature (°C) | 19 | 23 | 26 | 27 | 28 | 29 | 29 | 29 | 28 | 27 | 26 | 24 | 23 | 22 | 21 | 20 | 19 | 19 | 18 | 18 | 17 | 17 | 18 | 18 |
| Dewpoint (°C) | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 18 |
| Heat Index (°C) | 26 | 28 | 29 | 29 | 30 | 29 | 29 | 27 | 26 | 24 | ||||||||||||||
| Surface Wind (mph) | 0 | 1 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wind Dir | N | S | S | S | S | S | SE | SE | SE | SE | S | S | S | S | S | S | S | SE | NE | E | N | NW | NW | N |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 7 | 4 | 4 | 10 | 20 | 31 | 40 | 48 | 55 | 63 | 69 | 73 | 74 | 73 | 72 | 71 | 55 | 54 | 54 | 55 | 54 | 52 | 48 | 43 |
| Precipitation Potential (%) | 1 | 1 | 1 | 4 | 4 | 20 | 20 | 20 | 20 | 20 | 20 | 5 | 5 | 5 | 5 | 5 | 5 | 20 | 20 | 20 | 20 | 20 | 20 | 23 |
| Relative Humidity (%) | 81 | 66 | 60 | 54 | 49 | 48 | 46 | 48 | 49 | 54 | 60 | 66 | 71 | 79 | 84 | 87 | 90 | 93 | 97 | 97 | 100 | 100 | 97 | 97 |
| Rain | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | -- | -- | -- | -- |
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