| Point Forecast: Martinsburg Arpt WV 39.41N 77.97W (Elev. 499 ft) |
Last Update: 7:53 am EDT Sep 4, 2026 |
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| Date | 09/04 | 09/05 | ||||||||||||||||||||||
| Hour (EDT) | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |
| Temperature (°F) | 80 | 83 | 86 | 87 | 88 | 87 | 85 | 83 | 81 | 79 | 77 | 75 | 74 | 73 | 72 | 72 | 72 | 72 | 71 | 70 | 70 | 69 | 71 | 73 |
| Dewpoint (°F) | 73 | 74 | 74 | 73 | 72 | 72 | 72 | 72 | 72 | 71 | 70 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 70 | 69 | 69 | 68 | 70 | 69 |
| Heat Index (°F) | 84 | 90 | 94 | 94 | 95 | 94 | 91 | 88 | 85 | 79 | 77 | 75 | ||||||||||||
| Surface Wind (mph) | 5 | 7 | 9 | 10 | 10 | 10 | 10 | 9 | 9 | 7 | 5 | 5 | 5 | 3 | 3 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 3 |
| Wind Dir | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | W | NW | W | NW | W | NW | SW | NW | N | NW | NW | N | NW | N |
| Gust | 18 | 18 | ||||||||||||||||||||||
| Sky Cover (%) | 18 | 24 | 34 | 47 | 70 | 69 | 67 | 73 | 70 | 72 | 73 | 71 | 68 | 67 | 65 | 61 | 52 | 40 | 65 | 54 | 62 | 88 | 65 | 69 |
| Precipitation Potential (%) | 2 | 1 | 2 | 3 | 21 | 40 | 35 | 49 | 41 | 37 | 34 | 21 | 33 | 38 | 21 | 31 | 8 | 8 | 13 | 30 | 26 | 31 | 40 | 41 |
| Relative Humidity (%) | 79 | 74 | 68 | 63 | 59 | 61 | 65 | 70 | 74 | 77 | 79 | 82 | 84 | 87 | 90 | 90 | 90 | 90 | 97 | 97 | 97 | 97 | 97 | 87 |
| Rain | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | Chc | Chc | SChc | Chc | -- | -- | -- | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | Chc | Chc | Chc | -- | -- |
| Fog | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/06 | |||||||||||||||||||||||
| Hour (EDT) | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |
| Temperature (°F) | 76 | 78 | 77 | 80 | 80 | 80 | 80 | 79 | 78 | 77 | 73 | 71 | 69 | 68 | 67 | 67 | 66 | 65 | 64 | 63 | 61 | 61 | 62 | 65 |
| Dewpoint (°F) | 69 | 69 | 69 | 69 | 69 | 69 | 68 | 68 | 67 | 66 | 66 | 66 | 66 | 65 | 64 | 63 | 62 | 61 | 60 | 60 | 60 | 60 | 60 | 60 |
| Heat Index (°F) | 76 | 78 | 77 | 83 | 83 | 83 | 83 | 79 | 78 | 77 | ||||||||||||||
| Surface Wind (mph) | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 3 | 0 | 0 | 0 | 0 | 1 | 2 | 3 | 5 | 6 | 6 | 6 | 6 | 6 | 6 |
| Wind Dir | N | N | N | N | N | N | N | N | N | N | N | N | NE | NE | NE | N | N | N | N | N | N | N | N | N |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 69 | 77 | 72 | 67 | 68 | 70 | 69 | 58 | 70 | 63 | 51 | 52 | 47 | 42 | 42 | 42 | 42 | 43 | 43 | 44 | 37 | 31 | 24 | 27 |
| Precipitation Potential (%) | 40 | 14 | 29 | 39 | 0 | 55 | 50 | 37 | 55 | 44 | 8 | 8 | 8 | 8 | 8 | 8 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 |
| Relative Humidity (%) | 79 | 74 | 76 | 69 | 69 | 69 | 67 | 69 | 69 | 69 | 79 | 84 | 90 | 90 | 90 | 87 | 87 | 87 | 87 | 90 | 97 | 97 | 93 | 84 |
| Rain | Chc | -- | Chc | Chc | -- | Lkly | Chc | Chc | Lkly | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Fog | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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