| Point Forecast: West Chatham MA 41.68N 69.99W (Elev. 33 ft) |
Last Update: 6:22 pm EDT Jun 21, 2024 |
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| Date | 06/21 | 06/22 | ||||||||||||||||||||||
| Hour (EDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°F) | 71 | 70 | 68 | 67 | 67 | 66 | 66 | 66 | 67 | 67 | 67 | 67 | 67 | 68 | 68 | 73 | 74 | 75 | 76 | 77 | 77 | 76 | 76 | 75 |
| Dewpoint (°F) | 66 | 66 | 65 | 64 | 64 | 64 | 64 | 64 | 66 | 66 | 66 | 66 | 67 | 67 | 67 | 67 | 67 | 68 | 68 | 68 | 68 | 68 | 68 | 68 |
| Heat Index (°F) | 75 | 76 | 77 | 77 | 76 | 76 | 75 | |||||||||||||||||
| Surface Wind (mph) | 6 | 5 | 3 | 2 | 2 | 2 | 3 | 3 | 5 | 6 | 6 | 6 | 5 | 5 | 7 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 |
| Wind Dir | NE | NE | NE | N | NE | E | SE | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 39 | 49 | 68 | 75 | 79 | 81 | 82 | 83 | 85 | 84 | 77 | 83 | 82 | 79 | 79 | 78 | 68 | 60 | 65 | 57 | 60 | 54 | 45 | 61 |
| Precipitation Potential (%) | 0 | 10 | 12 | 17 | 30 | 17 | 3 | 3 | 6 | 9 | 12 | 10 | 8 | 9 | 7 | 4 | 4 | 8 | 12 | 16 | 20 | 24 | 24 | 31 |
| Relative Humidity (%) | 84 | 87 | 90 | 90 | 90 | 93 | 93 | 93 | 97 | 97 | 97 | 97 | 100 | 97 | 97 | 81 | 79 | 79 | 76 | 74 | 74 | 76 | 76 | 79 |
| Rain | -- | -- | -- | SChc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | Chc |
| Date | 06/23 | |||||||||||||||||||||||
| Hour (EDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°F) | 74 | 73 | 72 | 72 | 71 | 70 | 69 | 68 | 68 | 68 | 69 | 70 | 70 | 71 | 73 | 75 | 75 | 76 | 77 | 77 | 77 | 77 | 76 | 75 |
| Dewpoint (°F) | 67 | 67 | 66 | 66 | 66 | 67 | 66 | 67 | 67 | 66 | 66 | 66 | 67 | 67 | 68 | 69 | 69 | 70 | 70 | 71 | 71 | 71 | 70 | 70 |
| Heat Index (°F) | 75 | 75 | 76 | 77 | 77 | 77 | 77 | 76 | 75 | |||||||||||||||
| Surface Wind (mph) | 8 | 8 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 9 | 11 | 13 | 14 | 14 | 14 | 14 | 14 | 14 |
| 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 | 22 | 25 | 26 | 26 | 28 | 28 | 28 | 28 | ||||||||||||||||
| Sky Cover (%) | 68 | 74 | 83 | 82 | 80 | 79 | 80 | 81 | 82 | 82 | 82 | 81 | 81 | 81 | 81 | 75 | 69 | 63 | 61 | 59 | 57 | 58 | 60 | 62 |
| Precipitation Potential (%) | 31 | 31 | 30 | 27 | 23 | 20 | 21 | 22 | 23 | 22 | 21 | 20 | 21 | 22 | 23 | 24 | 24 | 23 | 24 | 24 | 24 | 25 | 25 | 26 |
| Relative Humidity (%) | 79 | 81 | 81 | 81 | 84 | 90 | 90 | 97 | 97 | 93 | 90 | 87 | 90 | 87 | 84 | 82 | 82 | 82 | 79 | 82 | 82 | 82 | 82 | 84 |
| Rain | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc |
| Thunder | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
