| Point Forecast: Decatur Airport IL 39.84N 88.88W (Elev. 650 ft) |
Last Update: 10:48 am CDT May 10, 2024 |
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| Date | 05/10 | 05/11 | ||||||||||||||||||||||
| Hour (CDT) | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 |
| Temperature (°F) | 64 | 66 | 68 | 68 | 67 | 67 | 68 | 66 | 66 | 63 | 60 | 59 | 57 | 56 | 56 | 56 | 55 | 54 | 54 | 52 | 54 | 57 | 59 | 65 |
| Dewpoint (°F) | 52 | 53 | 52 | 51 | 50 | 50 | 50 | 50 | 50 | 51 | 51 | 51 | 50 | 50 | 50 | 49 | 49 | 49 | 49 | 48 | 48 | 49 | 48 | 46 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 9 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 9 | 7 | 7 | 8 | 8 | 9 | 10 | 10 | 11 | 10 | 10 | 10 | 10 | 10 | 13 | 15 |
| Wind Dir | NW | NW | NW | NW | NW | WNW | WNW | W | W | W | WSW | WSW | SW | SW | SW | W | W | W | W | WNW | WNW | NW | NW | NW |
| Gust | 15 | 16 | 16 | 16 | 16 | 17 | 16 | 16 | 16 | 15 | 16 | 20 | 23 | |||||||||||
| Sky Cover (%) | 57 | 57 | 62 | 59 | 54 | 52 | 40 | 47 | 52 | 35 | 45 | 37 | 29 | 43 | 47 | 32 | 44 | 5 | 5 | 2 | 1 | 1 | 1 | 1 |
| Precipitation Potential (%) | 0 | 0 | 1 | 5 | 11 | 8 | 9 | 5 | 3 | 1 | 1 | 2 | 4 | 9 | 18 | 27 | 20 | 15 | 3 | 1 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 65 | 63 | 57 | 54 | 54 | 54 | 52 | 56 | 56 | 65 | 72 | 75 | 77 | 80 | 80 | 77 | 80 | 83 | 83 | 86 | 80 | 75 | 67 | 50 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | SChc | SChc | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/12 | |||||||||||||||||||||||
| Hour (CDT) | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 |
| Temperature (°F) | 67 | 69 | 70 | 71 | 71 | 72 | 71 | 70 | 69 | 66 | 62 | 58 | 56 | 54 | 53 | 52 | 51 | 51 | 50 | 50 | 52 | 56 | 62 | 67 |
| Dewpoint (°F) | 45 | 44 | 43 | 43 | 43 | 43 | 43 | 44 | 44 | 44 | 45 | 45 | 45 | 45 | 45 | 45 | 44 | 44 | 44 | 44 | 45 | 46 | 47 | 48 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 15 | 16 | 18 | 18 | 18 | 17 | 16 | 14 | 11 | 9 | 8 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 6 | 7 | 8 | 9 |
| Wind Dir | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | WNW | WNW | WNW | WNW | W | W | WSW | WSW | SSW | SSW | SSW | SSW | SSW |
| Gust | 23 | 24 | 28 | 28 | 28 | 26 | 24 | 21 | 17 | 15 | ||||||||||||||
| Sky Cover (%) | 3 | 3 | 2 | 2 | 3 | 3 | 7 | 12 | 4 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 7 | 12 | 17 | 14 | 11 | 8 |
| Precipitation Potential (%) | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 45 | 40 | 38 | 36 | 36 | 35 | 36 | 39 | 40 | 45 | 54 | 62 | 66 | 71 | 74 | 77 | 77 | 77 | 80 | 80 | 77 | 69 | 58 | 50 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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