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| Point Forecast: Central Islip NY 40.79N 73.2W (Elev. 30 m) |
Last Update: 3:26 am EDT Aug 13, 2020 |
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| Date | 08/13 | 08/14 | ||||||||||||||||||||||
| Hour (EDT) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°C) | 23 | 23 | 23 | 23 | 24 | 26 | 27 | 27 | 28 | 29 | 29 | 29 | 28 | 28 | 27 | 26 | 25 | 24 | 24 | 23 | 23 | 23 | 22 | 22 |
| Dewpoint (°C) | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Heat Index (°C) | 24 | 26 | 28 | 29 | 31 | 31 | 31 | 32 | 31 | 30 | 28 | 26 | 25 | 24 | 24 | |||||||||
| Surface Wind (mph) | 3 | 3 | 5 | 6 | 6 | 6 | 5 | 6 | 6 | 7 | 7 | 7 | 6 | 6 | 5 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | NE | NE | N | NE | NE | NE | E | E | SE | S | S | S | S | S | S | S | S | S | S | S | W | NW | NW | NW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 62 | 69 | 76 | 83 | 84 | 85 | 86 | 86 | 85 | 85 | 84 | 82 | 81 | 82 | 82 | 83 | 82 | 81 | 80 | 76 | 73 | 69 | 67 | 64 |
| Precipitation Potential (%) | 14 | 20 | 20 | 20 | 20 | 20 | 27 | 27 | 27 | 48 | 48 | 48 | 48 | 17 | 17 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Relative Humidity (%) | 100 | 100 | 97 | 93 | 90 | 79 | 74 | 72 | 65 | 63 | 63 | 65 | 67 | 69 | 72 | 76 | 79 | 82 | 84 | 84 | 87 | 90 | 93 | 97 |
| Rain | -- | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/15 | |||||||||||||||||||||||
| Hour (EDT) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°C) | 21 | 21 | 21 | 22 | 23 | 24 | 26 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 26 | 24 | 23 | 23 | 23 | 22 | 22 | 22 | 21 | 21 |
| Dewpoint (°C) | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 |
| Heat Index (°C) | 24 | 26 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 26 | 24 | |||||||||||||
| Surface Wind (mph) | 2 | 2 | 3 | 3 | 5 | 6 | 7 | 8 | 9 | 9 | 10 | 11 | 10 | 10 | 9 | 8 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 10 |
| Wind Dir | NW | N | N | N | NE | NE | NE | E | E | SE | SE | SE | SE | SE | E | E | E | E | NE | NE | NE | NE | NE | NE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 62 | 61 | 61 | 60 | 61 | 62 | 63 | 62 | 61 | 60 | 59 | 58 | 57 | 53 | 49 | 45 | 44 | 44 | 43 | 41 | 38 | 36 | 39 | 41 |
| Precipitation Potential (%) | 14 | 14 | 14 | 26 | 26 | 26 | 26 | 14 | 14 | 14 | 14 | 14 | 14 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Relative Humidity (%) | 100 | 100 | 97 | 93 | 82 | 76 | 71 | 65 | 61 | 61 | 61 | 61 | 63 | 65 | 69 | 76 | 82 | 82 | 81 | 84 | 84 | 87 | 87 | 90 |
| Rain | -- | -- | -- | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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