| Point Forecast: 3 Miles SSW Plano IL 41.63N 88.54W |
Last Update: 4:06 am CDT May 19, 2026 |
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| Date | 05/19 | 05/20 | ||||||||||||||||||||||
| Hour (CDT) | 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) | 19 | 19 | 19 | 19 | 21 | 23 | 24 | 25 | 24 | 24 | 23 | 23 | 22 | 22 | 21 | 19 | 17 | 16 | 14 | 13 | 12 | 12 | 11 | 10 |
| Dewpoint (°C) | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 18 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 11 | 9 | 8 | 8 | 7 | 7 | 6 |
| Heat Index (°C) | 24 | 25 | 24 | 24 | ||||||||||||||||||||
| Surface Wind (mph) | 15 | 15 | 15 | 16 | 17 | 18 | 18 | 18 | 18 | 17 | 16 | 15 | 15 | 14 | 13 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 9 |
| Wind Dir | SSW | SSW | SSW | SSW | SW | SW | WSW | WSW | WSW | W | W | WNW | WNW | WNW | NW | NW | NW | NW | NNW | NNW | NNW | N | N | N |
| Gust | 25 | 26 | 28 | 28 | 29 | 29 | 30 | 29 | 29 | 26 | 25 | 23 | 23 | 17 | 17 | |||||||||
| Sky Cover (%) | 87 | 83 | 80 | 78 | 76 | 74 | 76 | 79 | 81 | 80 | 79 | 78 | 64 | 51 | 37 | 38 | 39 | 40 | 38 | 35 | 32 | 35 | 39 | 42 |
| Precipitation Potential (%) | 46 | 38 | 30 | 27 | 24 | 21 | 24 | 26 | 29 | 25 | 21 | 17 | 13 | 8 | 3 | 3 | 4 | 4 | 4 | 4 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 88 | 89 | 89 | 91 | 84 | 77 | 71 | 69 | 69 | 69 | 67 | 66 | 63 | 61 | 62 | 65 | 68 | 70 | 72 | 72 | 73 | 74 | 76 | 77 |
| Rain | Chc | Chc | Chc | Chc | SChc | SChc | SChc | Chc | Chc | Chc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | SChc | SChc | SChc | SChc | -- | -- | -- | SChc | Chc | Chc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/21 | |||||||||||||||||||||||
| Hour (CDT) | 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) | 9 | 9 | 9 | 11 | 12 | 13 | 14 | 16 | 16 | 17 | 17 | 17 | 17 | 16 | 14 | 12 | 10 | 8 | 7 | 7 | 7 | 6 | 6 | 6 |
| Dewpoint (°C) | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 5 | 4 | 3 | 3 | 2 | 2 | 1 | 1 | 2 | 2 | 3 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 13 | 13 | 13 | 13 | 11 | 10 | 9 | 8 | 8 | 8 | 8 | 9 | 9 |
| Wind Dir | N | N | N | NNE | NNE | NNE | NE | NE | NE | NE | NE | ENE | ENE | ENE | ENE | NE | NE | NE | NE | NE | NE | NE | NE | NE |
| Gust | 18 | 21 | 20 | 18 | 17 | 16 | 16 | 17 | 18 | |||||||||||||||
| Sky Cover (%) | 40 | 38 | 36 | 41 | 46 | 51 | 50 | 50 | 49 | 43 | 38 | 32 | 31 | 31 | 30 | 31 | 32 | 33 | 36 | 39 | 42 | 40 | 38 | 35 |
| Precipitation Potential (%) | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 78 | 79 | 77 | 73 | 69 | 64 | 60 | 58 | 54 | 53 | 51 | 50 | 49 | 49 | 52 | 57 | 61 | 65 | 67 | 69 | 70 | 71 | 74 | 77 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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