| Point Forecast: Islip Terrace NY 40.75N 73.18W (Elev. 30 ft) |
Last Update: 3:16 pm EDT Jul 15, 2025 |
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| Date | 07/16 | 07/17 | ||||||||||||||||||||||
| 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 (°F) | 74 | 74 | 73 | 73 | 73 | 73 | 75 | 76 | 78 | 80 | 82 | 83 | 84 | 84 | 84 | 85 | 84 | 82 | 81 | 79 | 77 | 77 | 77 | 77 |
| Dewpoint (°F) | 74 | 73 | 73 | 73 | 72 | 73 | 74 | 76 | 76 | 77 | 76 | 77 | 78 | 77 | 77 | 77 | 77 | 77 | 76 | 75 | 76 | 76 | 75 | 75 |
| Heat Index (°F) | 75 | 76 | 78 | 87 | 89 | 92 | 95 | 94 | 94 | 96 | 94 | 90 | 87 | 79 | 77 | 77 | 77 | 77 | ||||||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 6 | 6 | 7 | 8 | 9 | 9 | 9 | 9 | 8 | 7 | 7 | 7 | 6 | 6 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SW | SW | S | S | S | S | S | S | S | S | S | S | S | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 43 | 56 | 41 | 45 | 53 | 56 | 46 | 52 | 51 | 32 | 42 | 41 | 35 | 46 | 44 | 36 | 43 | 49 | 70 | 80 | 77 | 84 | 90 | 90 |
| Precipitation Potential (%) | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 4 | 4 | 6 | 6 | 6 | 7 | 7 | 7 | 11 | 11 | 11 | 39 | 39 | 39 | 39 | 39 |
| Relative Humidity (%) | 100 | 97 | 100 | 100 | 97 | 100 | 97 | 100 | 94 | 91 | 82 | 82 | 82 | 80 | 80 | 77 | 80 | 85 | 85 | 88 | 97 | 96 | 94 | 94 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc |
| Date | 07/18 | |||||||||||||||||||||||
| 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 (°F) | 76 | 76 | 75 | 74 | 74 | 74 | 74 | 75 | 77 | 79 | 81 | 83 | 84 | 85 | 85 | 84 | 83 | 82 | 81 | 80 | 79 | 79 | 79 | 79 |
| Dewpoint (°F) | 75 | 75 | 74 | 73 | 73 | 74 | 74 | 75 | 77 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 77 | 77 | 76 | 76 | 75 | 75 | 75 |
| Heat Index (°F) | 76 | 76 | 75 | 75 | 77 | 79 | 89 | 93 | 95 | 97 | 97 | 95 | 93 | 90 | 88 | 86 | 79 | 79 | 79 | 79 | ||||
| Surface Wind (mph) | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 9 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 9 | 8 | 8 | 7 | 7 | 7 |
| 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 | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 91 | 91 | 90 | 90 | 89 | 84 | 78 | 73 | 70 | 67 | 64 | 64 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 44 | 41 | 37 | 34 | 37 |
| Precipitation Potential (%) | 39 | 47 | 47 | 47 | 47 | 47 | 47 | 48 | 48 | 48 | 48 | 48 | 48 | 64 | 64 | 64 | 64 | 64 | 64 | 12 | 12 | 12 | 12 | 12 |
| Relative Humidity (%) | 95 | 97 | 96 | 96 | 97 | 100 | 100 | 100 | 100 | 97 | 91 | 85 | 82 | 80 | 80 | 82 | 85 | 85 | 88 | 88 | 91 | 88 | 88 | 88 |
| Rain | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | -- | -- | -- | -- | -- |
| Thunder | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- |
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