| Point Forecast: Carbondale IL 37.72N 89.23W |
Last Update: 6:47 pm CDT May 16, 2025 |
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| Date | 05/16 | 05/17 | ||||||||||||||||||||||
| Hour (CDT) | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Temperature (°F) | 78 | 76 | 75 | 72 | 71 | 70 | 68 | 67 | 65 | 63 | 61 | 61 | 61 | 64 | 67 | 70 | 73 | 75 | 77 | 78 | 80 | 81 | 81 | 80 |
| Dewpoint (°F) | 66 | 67 | 66 | 65 | 63 | 60 | 58 | 57 | 56 | 54 | 52 | 51 | 51 | 51 | 51 | 50 | 51 | 51 | 51 | 52 | 53 | 53 | 53 | 54 |
| Heat Index (°F) | 78 | 76 | 75 | 75 | 77 | 78 | 80 | 80 | 80 | 80 | ||||||||||||||
| Surface Wind (mph) | 14 | 14 | 11 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 10 | 9 | 7 |
| Wind Dir | SW | SW | SW | WSW | WSW | WSW | SW | WSW | WSW | WSW | WSW | W | W | W | W | W | W | W | W | W | W | W | WNW | WNW |
| Gust | 24 | 23 | 21 | 20 | 18 | 18 | 20 | 21 | 21 | 21 | 20 | 18 | ||||||||||||
| Sky Cover (%) | 44 | 29 | 11 | 4 | 3 | 4 | 2 | 2 | 2 | 0 | 2 | 3 | 1 | 2 | 1 | 5 | 4 | 4 | 5 | 4 | 6 | 24 | 15 | 26 |
| Precipitation Potential (%) | 34 | 23 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 67 | 74 | 74 | 79 | 76 | 71 | 70 | 70 | 73 | 72 | 72 | 70 | 70 | 63 | 56 | 49 | 46 | 43 | 40 | 40 | 39 | 38 | 38 | 41 |
| Rain | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/18 | |||||||||||||||||||||||
| Hour (CDT) | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Temperature (°F) | 77 | 74 | 70 | 67 | 66 | 64 | 62 | 61 | 60 | 59 | 58 | 58 | 60 | 63 | 65 | 68 | 71 | 73 | 75 | 76 | 77 | 77 | 77 | 77 |
| Dewpoint (°F) | 56 | 57 | 57 | 56 | 56 | 56 | 55 | 55 | 56 | 56 | 56 | 56 | 56 | 56 | 57 | 57 | 57 | 58 | 58 | 58 | 59 | 59 | 60 | 61 |
| Heat Index (°F) | 77 | 75 | 76 | 77 | 77 | 77 | 77 | |||||||||||||||||
| Surface Wind (mph) | 6 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 5 |
| Wind Dir | WNW | WNW | NW | NNW | NNW | NNW | NNW | N | N | N | N | NNE | NNE | NE | ENE | ENE | E | E | E | E | ESE | ESE | ESE | ESE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 10 | 25 | 35 | 56 | 51 | 49 | 47 | 51 | 55 | 59 | 62 | 65 | 68 | 64 | 61 | 57 | 53 | 49 | 45 | 45 | 46 | 46 | 50 | 55 |
| Precipitation Potential (%) | 2 | 2 | 2 | 2 | 2 | 2 | 20 | 20 | 20 | 20 | 20 | 20 | 26 | 26 | 26 | 26 | 26 | 26 | 28 | 28 | 28 | 28 | 28 | 28 |
| Relative Humidity (%) | 48 | 55 | 63 | 68 | 70 | 75 | 78 | 81 | 87 | 90 | 93 | 93 | 87 | 80 | 73 | 68 | 63 | 58 | 56 | 54 | 53 | 54 | 55 | 58 |
| Rain | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc |
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