| Point Forecast: Port Jefferson NY 40.95N 73.05W (Elev. 151 ft) |
Last Update: 2:18 am EDT Jul 14, 2025 |
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| Date | 07/14 | 07/15 | ||||||||||||||||||||||
| Hour (EDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 73 | 72 | 72 | 72 | 73 | 74 | 76 | 77 | 78 | 79 | 81 | 82 | 83 | 84 | 82 | 82 | 80 | 78 | 77 | 76 | 75 | 75 | 75 | 75 |
| Dewpoint (°F) | 70 | 70 | 70 | 71 | 71 | 72 | 72 | 72 | 72 | 72 | 73 | 73 | 72 | 73 | 72 | 72 | 72 | 71 | 72 | 72 | 72 | 73 | 73 | 73 |
| Heat Index (°F) | 76 | 77 | 78 | 79 | 86 | 87 | 88 | 90 | 87 | 87 | 84 | 78 | 77 | 76 | 75 | 75 | 75 | 75 | ||||||
| Surface Wind (mph) | 3 | 3 | 3 | 3 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 5 |
| Wind Dir | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 81 | 79 | 77 | 76 | 76 | 75 | 75 | 74 | 74 | 73 | 71 | 70 | 65 | 60 | 56 | 65 | 74 | 83 | 86 | 89 | 92 | 91 | 91 | 90 |
| Precipitation Potential (%) | 14 | 14 | 15 | 15 | 15 | 5 | 5 | 5 | 8 | 8 | 8 | 26 | 26 | 26 | 30 | 30 | 30 | 36 | 36 | 36 | 36 | 36 | 36 | 58 |
| Relative Humidity (%) | 90 | 93 | 93 | 97 | 93 | 93 | 87 | 85 | 82 | 79 | 77 | 74 | 70 | 70 | 72 | 72 | 77 | 79 | 85 | 87 | 90 | 94 | 94 | 94 |
| Rain | -- | -- | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly |
| Thunder | -- | -- | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc |
| Date | 07/16 | |||||||||||||||||||||||
| Hour (EDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 74 | 74 | 73 | 74 | 74 | 75 | 76 | 78 | 79 | 80 | 81 | 83 | 84 | 84 | 84 | 83 | 81 | 80 | 78 | 77 | 76 | 75 | 75 | 75 |
| Dewpoint (°F) | 73 | 72 | 72 | 72 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 72 | 73 | 73 | 73 | 73 | 73 | 73 | 74 | 74 |
| Heat Index (°F) | 75 | 76 | 78 | 79 | 84 | 86 | 89 | 90 | 90 | 90 | 88 | 86 | 84 | 78 | 77 | 76 | 75 | 75 | 75 | |||||
| Surface Wind (mph) | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SW | S | S | S | S | S | S | S | S | S | S | S | S | S | S | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 92 | 93 | 95 | 92 | 88 | 85 | 83 | 81 | 79 | 71 | 64 | 56 | 51 | 45 | 40 | 40 | 41 | 40 | 39 | 37 | 36 | 40 | 44 | 49 |
| Precipitation Potential (%) | 58 | 58 | 58 | 58 | 58 | 40 | 40 | 40 | 40 | 40 | 40 | 24 | 24 | 24 | 24 | 24 | 24 | 12 | 12 | 12 | 12 | 12 | 12 | 17 |
| Relative Humidity (%) | 97 | 93 | 97 | 93 | 97 | 94 | 90 | 85 | 82 | 79 | 77 | 72 | 70 | 70 | 70 | 70 | 77 | 79 | 85 | 87 | 90 | 94 | 97 | 97 |
| Rain | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | SChc |
| Thunder | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | SChc |
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