| Point Forecast: Caldwell, Essex County Airport NJ 40.88N 74.27W (Elev. 59 m) |
Last Update: 1:56 am EDT Sep 16, 2026 |
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| Date | 09/16 | 09/17 | ||||||||||||||||||||||
| Hour (EDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°C) | 15 | 15 | 14 | 14 | 14 | 15 | 16 | 18 | 20 | 22 | 23 | 24 | 26 | 26 | 27 | 27 | 26 | 25 | 23 | 22 | 22 | 21 | 21 | 20 |
| Dewpoint (°C) | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 15 | 15 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 17 |
| Heat Index (°C) | 24 | 26 | 26 | 27 | 27 | 26 | 25 | |||||||||||||||||
| Surface Wind (mph) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wind Dir | S | S | S | S | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 11 | 14 | 17 | 20 | 23 | 27 | 30 | 28 | 26 | 24 | 32 | 40 | 48 | 51 | 53 | 56 | 57 | 57 | 58 | 59 | 59 | 60 | 60 | 60 |
| Precipitation Potential (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 87 | 87 | 90 | 90 | 90 | 90 | 90 | 78 | 70 | 66 | 62 | 58 | 56 | 56 | 54 | 56 | 58 | 62 | 71 | 73 | 76 | 78 | 84 | 84 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/18 | |||||||||||||||||||||||
| Hour (EDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°C) | 20 | 19 | 19 | 19 | 18 | 18 | 20 | 22 | 24 | 25 | 26 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 25 | 24 | 23 | 23 | 22 | 22 |
| Dewpoint (°C) | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 |
| Heat Index (°C) | 24 | 25 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 25 | 24 | ||||||||||||
| Surface Wind (mph) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 6 | 6 | 7 | 7 | 7 | 7 | 6 | 5 | 3 | 0 | 0 | 2 | 2 | 1 |
| Wind Dir | S | S | S | S | S | S | SE | S | S | S | S | S | SW | SW | SW | S | S | S | S | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 60 | 61 | 62 | 64 | 60 | 56 | 52 | 31 | 52 | 54 | 59 | 59 | 63 | 76 | 90 | 88 | 91 | 89 | 85 | 72 | 71 | 69 | 71 | 72 |
| Precipitation Potential (%) | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 7 | 7 | 7 | 11 | 11 | 11 | 17 | 17 | 17 | 17 | 17 | 17 |
| Relative Humidity (%) | 84 | 87 | 90 | 89 | 92 | 92 | 85 | 80 | 70 | 63 | 59 | 60 | 57 | 58 | 58 | 57 | 62 | 65 | 68 | 74 | 77 | 79 | 81 | 83 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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