| Point Forecast: 16NM SSE Gloucester MA 42.39N 70.47W (Elev. 0 m) |
Last Update: 1:42 pm EDT Apr 21, 2026 |
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| Date | 04/22 | 04/23 | ||||||||||||||||||||||
| 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 (°C) | 6 | 5 | 5 | 6 | 6 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 |
| Dewpoint (°C) | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (km/h) | 26 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 26 | 26 | 27 | 27 | 29 | 29 | 29 | 27 | 27 | 26 | 26 | 24 | 23 | 21 | 21 | 18 |
| Wind Dir | SSW | SSW | SSW | SSW | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 52 | 51 | 47 | 52 | 61 | 72 | 75 | 72 | 71 | 69 | 83 | 88 | 89 | 93 | 90 | 91 | 89 | 91 | 84 | 93 | 86 | 87 | 87 | 87 |
| Precipitation Potential (%) | 1 | 1 | 2 | 4 | 7 | 9 | 11 | 12 | 14 | 17 | 21 | 25 | 28 | 30 | 29 | 26 | 24 | 21 | 19 | 17 | 18 | 20 | 21 | 23 |
| Relative Humidity (%) | 68 | 72 | 72 | 74 | 74 | 78 | 76 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 78 | 80 | 84 | 83 | 85 | 85 | 86 | 87 | 89 | 91 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Fog | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Patchy | Patchy | Patchy | Patchy | Patchy | Patchy |
| Significant Wave Height (m) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Wave Direction (°) | ||||||||||||||||||||||||
| Swell Height (m) | ||||||||||||||||||||||||
| Swell Dir | ||||||||||||||||||||||||
| Swell Period (sec) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 |
| Swell 2 Period (sec) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Wind Wave Height (m) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Date | 04/24 | |||||||||||||||||||||||
| 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 (°C) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 7 |
| Dewpoint (°C) | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 2 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (km/h) | 16 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 18 | 18 | 21 | 21 | 21 | 21 |
| Wind Dir | S | S | SSW | SSW | SW | SW | WSW | WSW | W | W | WNW | WNW | NW | NW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 88 | 88 | 87 | 86 | 85 | 77 | 68 | 60 | 53 | 46 | 39 | 37 | 34 | 32 | 30 | 28 | 26 | 28 | 30 | 32 | 29 | 25 | 22 | 21 |
| Precipitation Potential (%) | 24 | 25 | 23 | 20 | 17 | 14 | 11 | 9 | 10 | 11 | 12 | 14 | 15 | 16 | 15 | 15 | 17 | 13 | 7 | 5 | 2 | 2 | 1 | 2 |
| Relative Humidity (%) | 92 | 93 | 95 | 96 | 97 | 96 | 95 | 93 | 91 | 88 | 86 | 83 | 81 | 78 | 75 | 72 | 69 | 68 | 68 | 69 | 69 | 70 | 70 | 71 |
| Rain | SChc | Chc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- |
| Fog | Patchy | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Significant Wave Height (m) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Wave Direction (°) | ||||||||||||||||||||||||
| Swell Height (m) | ||||||||||||||||||||||||
| Swell Dir | ||||||||||||||||||||||||
| Swell Period (sec) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Swell 2 Period (sec) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||
| Wind Wave Height (m) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
