| Point Forecast: Marthas Vineyard Airport MA 41.39N 70.62W (Elev. 59 ft) |
Last Update: 4:27 pm EDT May 16, 2025 |
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| Date | 05/17 | |||||||||||||||||||||||
| Hour (EDT) | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Temperature (°F) | 57 | 57 | 57 | 57 | 56 | 56 | 57 | 58 | 61 | 62 | 63 | 64 | 65 | 65 | 65 | 65 | 64 | 63 | 62 | 61 | 59 | 58 | 58 | 58 |
| Dewpoint (°F) | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 57 | 57 | 58 | 58 | 59 | 59 | 59 | 59 | 58 | 58 | 58 | 58 | 57 | 57 | 57 | 57 | 58 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 5 | 5 | 5 | 3 | 3 | 3 | 5 | 5 | 7 | 7 | 9 | 10 | 10 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 8 | 8 | 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 | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 94 | 94 | 94 | 95 | 97 | 98 | 96 | 95 | 93 | 93 | 93 | 93 | 92 | 92 | 91 | 89 | 88 | 87 | 82 | 78 | 73 | 72 | 67 | 64 |
| Precipitation Potential (%) | 13 | 14 | 10 | 11 | 10 | 12 | 13 | 15 | 16 | 13 | 8 | 8 | 10 | 9 | 14 | 16 | 10 | 22 | 13 | 21 | 29 | 22 | 15 | 14 |
| Relative Humidity (%) | 96 | 96 | 96 | 96 | 100 | 100 | 96 | 96 | 87 | 87 | 84 | 84 | 81 | 81 | 81 | 78 | 81 | 84 | 87 | 87 | 93 | 96 | 96 | 100 |
| Rain | -- | -- | Chc | Chc | SChc | SChc | SChc | SChc | SChc | Chc | -- | -- | -- | -- | -- | SChc | -- | SChc | -- | SChc | Chc | SChc | SChc | -- |
| Thunder | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/18 | |||||||||||||||||||||||
| Hour (EDT) | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Temperature (°F) | 58 | 58 | 58 | 57 | 56 | 56 | 57 | 60 | 62 | 63 | 64 | 65 | 66 | 66 | 66 | 66 | 65 | 64 | 63 | 61 | 60 | 59 | 59 | 58 |
| Dewpoint (°F) | 57 | 57 | 57 | 56 | 55 | 55 | 55 | 55 | 55 | 54 | 53 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 10 | 11 | 13 | 14 | 15 | 15 | 16 | 16 | 15 | 15 | 14 | 11 | 10 | 10 | 10 | 10 |
| Wind Dir | SW | W | W | W | W | W | W | W | W | W | W | W | W | SW | SW | SW | W | W | W | W | W | W | W | W |
| Gust | 25 | 26 | ||||||||||||||||||||||
| Sky Cover (%) | 60 | 56 | 52 | 48 | 43 | 39 | 31 | 24 | 16 | 14 | 11 | 9 | 11 | 13 | 16 | 21 | 26 | 31 | 38 | 45 | 52 | 47 | 42 | 37 |
| Precipitation Potential (%) | 12 | 11 | 6 | 6 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 3 | 4 | 5 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 7 | 7 |
| Relative Humidity (%) | 96 | 96 | 96 | 96 | 96 | 96 | 93 | 84 | 78 | 72 | 67 | 63 | 61 | 61 | 61 | 61 | 63 | 65 | 67 | 72 | 75 | 78 | 78 | 80 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
