| Point Forecast: Islip Terrace NY 40.75N 73.18W (Elev. 9 m) |
Last Update: 6:03 am EDT Jul 15, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (EDT) | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 |
| Temperature (°C) | 23 | 24 | 25 | 26 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 26 | 25 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 |
| Dewpoint (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Heat Index (°C) | 24 | 25 | 26 | 29 | 30 | 31 | 31 | 31 | 31 | 31 | 30 | 26 | 25 | 24 | 24 | 24 | 24 | |||||||
| Surface Wind (mph) | 3 | 3 | 5 | 5 | 6 | 7 | 8 | 9 | 9 | 8 | 8 | 8 | 8 | 7 | 6 | 5 | 5 | 3 | 2 | 1 | 1 | 1 | 1 | 1 |
| Wind Dir | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 100 | 100 | 90 | 80 | 70 | 65 | 59 | 54 | 52 | 19 | 23 | 24 | 24 | 25 | 34 | 42 | 51 | 51 | 52 | 52 | 53 | 55 | 56 | 54 |
| Precipitation Potential (%) | 51 | 40 | 40 | 40 | 15 | 15 | 15 | 10 | 10 | 10 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 6 | 6 |
| Relative Humidity (%) | 100 | 97 | 90 | 85 | 82 | 79 | 77 | 77 | 77 | 77 | 77 | 79 | 85 | 90 | 94 | 94 | 94 | 97 | 100 | 97 | 97 | 100 | 100 | 97 |
| Rain | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (EDT) | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 |
| Temperature (°C) | 24 | 25 | 26 | 27 | 28 | 28 | 29 | 29 | 30 | 30 | 29 | 28 | 27 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 23 | 24 | 24 |
| Dewpoint (°C) | 23 | 24 | 24 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 |
| Heat Index (°C) | 24 | 25 | 26 | 31 | 32 | 33 | 34 | 35 | 36 | 36 | 34 | 32 | 30 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | |
| Surface Wind (mph) | 2 | 3 | 3 | 5 | 6 | 7 | 9 | 10 | 11 | 11 | 11 | 10 | 9 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 |
| Wind Dir | W | W | W | SW | S | S | S | S | S | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 51 | 49 | 48 | 47 | 46 | 43 | 44 | 47 | 47 | 46 | 49 | 59 | 72 | 84 | 90 | 91 | 91 | 91 | 92 | 92 | 92 | 91 | 87 | 81 |
| Precipitation Potential (%) | 6 | 7 | 7 | 7 | 12 | 12 | 12 | 11 | 11 | 11 | 20 | 20 | 20 | 40 | 40 | 40 | 40 | 40 | 40 | 50 | 50 | 50 | 50 | 50 |
| Relative Humidity (%) | 97 | 97 | 94 | 88 | 85 | 82 | 80 | 82 | 75 | 75 | 77 | 82 | 88 | 94 | 97 | 94 | 94 | 97 | 94 | 94 | 94 | 97 | 94 | 97 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc |
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