| Point Forecast: Glenbard South IL 41.83N 88.09W |
Last Update: 3:41 am CDT May 18, 2024 |
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| Date | 05/18 | 05/19 | ||||||||||||||||||||||
| Hour (CDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°C) | 16 | 16 | 17 | 18 | 20 | 23 | 26 | 27 | 28 | 29 | 29 | 30 | 30 | 30 | 29 | 29 | 27 | 24 | 23 | 22 | 21 | 21 | 20 | 20 |
| Dewpoint (°C) | 13 | 13 | 14 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 |
| Heat Index (°C) | 26 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 27 | 24 | ||||||||||||
| Surface Wind (mph) | 3 | 3 | 3 | 3 | 5 | 6 | 6 | 7 | 8 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 6 | 6 | 5 | 5 | 6 | 6 | 6 | 5 |
| Wind Dir | SSE | S | S | S | S | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | S | S | S | SSW | SSW | SSW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 17 | 23 | 23 | 24 | 18 | 12 | 11 | 10 | 15 | 20 | 21 | 22 | 20 | 18 | 19 | 20 | 19 | 18 | 23 | 29 | 36 | 43 | 42 | 41 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 4 | 4 | 4 | 7 | 7 | 7 | 7 | 7 | 8 | 13 | 13 | 13 |
| Relative Humidity (%) | 84 | 84 | 87 | 84 | 76 | 64 | 56 | 51 | 46 | 45 | 42 | 39 | 39 | 39 | 40 | 41 | 47 | 55 | 59 | 61 | 66 | 66 | 73 | 73 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/20 | |||||||||||||||||||||||
| Hour (CDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°C) | 19 | 19 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 27 | 27 | 27 | 26 | 24 | 22 | 21 | 19 | 18 | 18 | 18 | 17 | 17 |
| Dewpoint (°C) | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 11 | 11 | 11 | 11 |
| Heat Index (°C) | 24 | 25 | 26 | 27 | 27 | 27 | 27 | 26 | 24 | |||||||||||||||
| Surface Wind (mph) | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Wind Dir | WSW | W | NW | N | N | NNE | NE | NE | ENE | ENE | ENE | ENE | ENE | E | E | E | E | E | E | E | ESE | ESE | SE | SE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 39 | 34 | 29 | 24 | 21 | 18 | 14 | 17 | 19 | 21 | 23 | 25 | 27 | 33 | 38 | 44 | 48 | 53 | 57 | 61 | 64 | 68 | 61 | 54 |
| Precipitation Potential (%) | 12 | 12 | 12 | 5 | 5 | 5 | 5 | 5 | 5 | 10 | 10 | 10 | 10 | 10 | 10 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 |
| Relative Humidity (%) | 75 | 75 | 75 | 70 | 66 | 61 | 53 | 52 | 47 | 44 | 42 | 39 | 39 | 39 | 40 | 44 | 47 | 51 | 54 | 58 | 63 | 63 | 69 | 69 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
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