| Point Forecast: 2NM WNW Portsmouth RI 41.61N 71.28W (Elev. 0 ft) |
Last Update: 2:28 am EDT Aug 18, 2026 |
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| Date | 08/18 | 08/19 | ||||||||||||||||||||||
| Hour (EDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°F) | 70 | 69 | 69 | 70 | 71 | 73 | 75 | 76 | 78 | 79 | 80 | 80 | 79 | 79 | 78 | 76 | 74 | 73 | 73 | 73 | 72 | 72 | 71 | 71 |
| Surface Wind (mph) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 3 | 2 | 3 | 2 | 5 | 5 | 5 | 6 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Wind Dir | N | N | N | N | N | N | N | N | NNW | NW | NW | WSW | SSW | SSW | SSW | SSW | S | S | S | S | SSW | SSW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Precipitation Potential (%) | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 2 | 4 | 6 | 8 | 11 | 14 | 18 | 16 | 15 | 13 | 8 | 8 | 4 | 5 | 5 | 7 | 8 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Fog | Patchy | Patchy | Patchy | Patchy | Patchy | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Patchy |
| Significant Wave Height (ft) | 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 (°) | ||||||||||||||||||||||||
| Wind Wave Height (ft) | 3 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 |
| Date | 08/20 | |||||||||||||||||||||||
| Hour (EDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°F) | 70 | 69 | 69 | 70 | 71 | 74 | 76 | 78 | 79 | 81 | 81 | 82 | 81 | 82 | 81 | 79 | 76 | 75 | 74 | 73 | 72 | 72 | 72 | 71 |
| Surface Wind (mph) | 3 | 3 | 3 | 2 | 2 | 2 | 3 | 3 | 4 | 6 | 7 | 8 | 8 | 8 | 9 | 8 | 8 | 7 | 7 | 7 | 7 | 6 | 5 | 4 |
| Wind Dir | SW | SW | WSW | SW | SSW | SW | SW | SW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SW | SW | SW | SW | SW | SW | WSW | WSW | WSW |
| Gust | ||||||||||||||||||||||||
| Precipitation Potential (%) | 6 | 6 | 7 | 4 | 4 | 3 | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Fog | Patchy | Patchy | Patchy | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Significant Wave Height (ft) | 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 (°) | ||||||||||||||||||||||||
| Wind Wave Height (ft) | 1 | 1 | 1 | 1 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
