| Point Forecast: Marthas Vineyard Airport MA 41.39N 70.62W (Elev. 59 ft) |
Last Update: 12:11 am EDT Jul 16, 2025 |
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| Date | 07/16 | 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) | 70 | 70 | 70 | 70 | 70 | 70 | 71 | 73 | 75 | 77 | 78 | 80 | 80 | 80 | 80 | 79 | 78 | 77 | 75 | 74 | 73 | 72 | 71 | 72 |
| Dewpoint (°F) | 70 | 69 | 70 | 70 | 69 | 69 | 71 | 72 | 73 | 73 | 73 | 73 | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 72 | 72 | 71 | 71 | 71 |
| Heat Index (°F) | 75 | 77 | 78 | 84 | 85 | 85 | 85 | 79 | 78 | 77 | 75 | |||||||||||||
| Surface Wind (mph) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 6 | 7 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 9 | 8 | 7 | 7 | 7 | 7 | 7 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 68 | 73 | 81 | 79 | 83 | 80 | 67 | 63 | 61 | 56 | 56 | 45 | 46 | 35 | 31 | 23 | 37 | 46 | 58 | 71 | 64 | 78 | 73 | 81 |
| Precipitation Potential (%) | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 |
| Relative Humidity (%) | 100 | 97 | 100 | 100 | 97 | 97 | 100 | 97 | 94 | 88 | 85 | 79 | 82 | 82 | 82 | 85 | 88 | 88 | 94 | 93 | 97 | 97 | 100 | 97 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/18 | |||||||||||||||||||||||
| 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) | 71 | 71 | 71 | 71 | 71 | 71 | 73 | 75 | 76 | 78 | 79 | 80 | 80 | 80 | 79 | 78 | 77 | 76 | 75 | 74 | 74 | 73 | 73 | 73 |
| Dewpoint (°F) | 71 | 71 | 71 | 71 | 71 | 71 | 73 | 73 | 73 | 73 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 72 | 72 | 72 |
| Heat Index (°F) | 75 | 76 | 78 | 79 | 84 | 85 | 85 | 83 | 78 | 77 | 76 | 75 | ||||||||||||
| Surface Wind (mph) | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 11 | 14 | 15 | 15 | 15 | 15 | 15 | 14 | 13 | 13 | 11 | 11 | 10 | 10 | 10 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 84 | 84 | 90 | 86 | 83 | 87 | 73 | 66 | 60 | 66 | 72 | 69 | 66 | 63 | 61 | 58 | 56 | 56 | 57 | 57 | 53 | 49 | 45 | 42 |
| Precipitation Potential (%) | 1 | 2 | 2 | 4 | 6 | 8 | 7 | 18 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 13 | 12 | 11 |
| Relative Humidity (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 94 | 90 | 87 | 85 | 83 | 82 | 82 | 84 | 87 | 90 | 93 | 95 | 97 | 97 | 97 | 97 | 97 |
| Rain | -- | -- | -- | -- | -- | -- | -- | Ocnl | Ocnl | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
