| Point Forecast: Harpers Ferry WV 39.32N 77.73W (Elev. 299 ft) |
Last Update: 7:30 pm EDT Jul 14, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (EDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°F) | 73 | 72 | 72 | 72 | 72 | 71 | 71 | 73 | 76 | 78 | 80 | 82 | 83 | 84 | 84 | 84 | 84 | 83 | 82 | 80 | 78 | 77 | 76 | 75 |
| Dewpoint (°F) | 72 | 72 | 72 | 71 | 71 | 71 | 71 | 72 | 73 | 74 | 74 | 74 | 73 | 73 | 73 | 74 | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 73 |
| Heat Index (°F) | 76 | 78 | 84 | 88 | 89 | 90 | 90 | 91 | 91 | 90 | 88 | 84 | 78 | 77 | 76 | 75 | ||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 5 |
| Wind Dir | NW | NW | NW | N | N | N | N | N | NW | N | N | NE | E | E | E | SE | SE | SE | SE | S | SE | SE | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 60 | 51 | 63 | 65 | 64 | 71 | 63 | 64 | 61 | 61 | 55 | 42 | 40 | 55 | 51 | 55 | 69 | 68 | 65 | 64 | 54 | 53 | 52 | 54 |
| Precipitation Potential (%) | 16 | 11 | 4 | 4 | 4 | 4 | 2 | 5 | 6 | 6 | 11 | 12 | 15 | 32 | 26 | 33 | 54 | 52 | 47 | 19 | 19 | 19 | 19 | 19 |
| Relative Humidity (%) | 97 | 100 | 100 | 97 | 97 | 100 | 100 | 97 | 90 | 88 | 82 | 77 | 72 | 70 | 70 | 72 | 72 | 74 | 77 | 82 | 88 | 87 | 90 | 94 |
| Rain | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc |
| Thunder | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (EDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°F) | 75 | 74 | 73 | 73 | 73 | 73 | 74 | 75 | 77 | 80 | 82 | 83 | 84 | 85 | 86 | 86 | 85 | 84 | 82 | 80 | 79 | 78 | 77 | 76 |
| Dewpoint (°F) | 72 | 72 | 72 | 72 | 72 | 73 | 73 | 74 | 74 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 74 | 74 | 73 | 73 |
| Heat Index (°F) | 75 | 75 | 77 | 85 | 89 | 90 | 92 | 94 | 95 | 95 | 94 | 92 | 89 | 85 | 79 | 78 | 77 | 76 | ||||||
| Surface Wind (mph) | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Wind Dir | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 55 | 57 | 61 | 66 | 70 | 69 | 69 | 68 | 63 | 59 | 54 | 62 | 70 | 78 | 78 | 78 | 78 | 78 | 79 | 79 | 78 | 78 | 77 | 77 |
| Precipitation Potential (%) | 19 | 12 | 12 | 12 | 12 | 12 | 12 | 15 | 15 | 15 | 15 | 15 | 15 | 67 | 67 | 67 | 67 | 67 | 67 | 26 | 26 | 26 | 26 | 26 |
| Relative Humidity (%) | 90 | 93 | 97 | 97 | 97 | 100 | 97 | 97 | 90 | 85 | 79 | 77 | 74 | 72 | 70 | 70 | 72 | 74 | 79 | 85 | 85 | 88 | 87 | 90 |
| Rain | SChc | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc |
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