| Point Forecast: 3 Miles W Martinsburg WV 39.46N 78.02W (Elev. 600 ft) |
Last Update: 2:23 am EDT Sep 16, 2026 |
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| Date | 09/16 | 09/17 | ||||||||||||||||||||||
| Hour (EDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 59 | 58 | 58 | 57 | 56 | 58 | 63 | 71 | 75 | 79 | 82 | 84 | 85 | 86 | 86 | 84 | 82 | 78 | 74 | 72 | 71 | 70 | 69 | 68 |
| Dewpoint (°F) | 53 | 53 | 54 | 54 | 54 | 57 | 59 | 60 | 61 | 62 | 63 | 63 | 64 | 64 | 64 | 64 | 64 | 65 | 65 | 65 | 65 | 65 | 64 | 64 |
| Heat Index (°F) | 75 | 79 | 83 | 85 | 86 | 87 | 87 | 85 | 83 | 78 | ||||||||||||||
| Surface Wind (mph) | 2 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 5 | 5 | 5 | 5 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 |
| Wind Dir | S | S | S | S | S | SE | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 10 | 8 | 6 | 10 | 14 | 18 | 12 | 14 | 23 | 12 | 13 | 20 | 27 | 23 | 24 | 15 | 10 | 19 | 31 | 46 | 54 | 56 | 58 | 26 |
| Precipitation Potential (%) | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 5 | 5 | 5 | 5 | 5 | 6 | 5 |
| Relative Humidity (%) | 80 | 83 | 86 | 90 | 93 | 96 | 87 | 68 | 62 | 56 | 53 | 49 | 50 | 48 | 48 | 51 | 55 | 64 | 74 | 79 | 81 | 84 | 84 | 87 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/18 | |||||||||||||||||||||||
| Hour (EDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 67 | 67 | 67 | 66 | 65 | 67 | 71 | 76 | 80 | 84 | 85 | 85 | 86 | 85 | 85 | 84 | 80 | 77 | 75 | 74 | 73 | 72 | 72 | 72 |
| Dewpoint (°F) | 63 | 64 | 64 | 64 | 63 | 65 | 68 | 70 | 71 | 72 | 73 | 74 | 75 | 75 | 75 | 74 | 73 | 73 | 72 | 71 | 71 | 71 | 70 | 70 |
| Heat Index (°F) | 76 | 83 | 90 | 92 | 93 | 95 | 94 | 94 | 91 | 84 | 77 | 75 | ||||||||||||
| Surface Wind (mph) | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 3 | 3 | 5 | 5 | 6 | 5 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | S | S | SW | SW | SE | S | S | S | S | S | S | S | S | S | S | SW | SW | S | SW | W | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 23 | 37 | 50 | 63 | 69 | 52 | 36 | 33 | 38 | 35 | 52 | 65 | 59 | 67 | 75 | 78 | 74 | 53 | 53 | 53 | 53 | 53 | 53 | 47 |
| Precipitation Potential (%) | 5 | 6 | 6 | 8 | 7 | 9 | 9 | 16 | 20 | 19 | 28 | 47 | 38 | 50 | 62 | 67 | 61 | 30 | 30 | 30 | 30 | 30 | 30 | 2 |
| Relative Humidity (%) | 87 | 90 | 90 | 93 | 93 | 93 | 90 | 82 | 74 | 67 | 67 | 70 | 70 | 72 | 72 | 72 | 79 | 87 | 90 | 90 | 93 | 97 | 93 | 93 |
| Rain | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- |
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