| Point Forecast: Holiday Hills IL 42.29N 88.2W |
Last Update: 8:41 pm CDT Jul 19, 2026 |
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| Date | 07/19 | 07/20 | ||||||||||||||||||||||
| Hour (CDT) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°F) | 65 | 64 | 63 | 62 | 62 | 61 | 61 | 61 | 64 | 69 | 73 | 77 | 79 | 81 | 82 | 84 | 84 | 84 | 84 | 84 | 83 | 81 | 79 | 75 |
| Dewpoint (°F) | 56 | 57 | 57 | 57 | 57 | 58 | 58 | 59 | 60 | 61 | 62 | 63 | 63 | 63 | 63 | 64 | 64 | 65 | 66 | 67 | 68 | 69 | 69 | 70 |
| Heat Index (°F) | 77 | 81 | 82 | 83 | 85 | 85 | 86 | 87 | 87 | 86 | 84 | 82 | 75 | |||||||||||
| Surface Wind (mph) | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 3 | 6 | 7 | 7 | 9 | 10 | 11 | 13 | 14 | 15 | 16 | 16 | 15 | 14 | 14 | 14 |
| Wind Dir | ESE | SE | SSE | S | SSW | SW | SSW | SSW | SSW | SSW | SSW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | 13 | 15 | 16 | 18 | 21 | 23 | 25 | 25 | 25 | 25 | 25 | 24 | 23 | |||||||||||
| Sky Cover (%) | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 46 | 55 | 55 | 54 | 81 | 56 | 61 | 51 | 36 | 39 | 34 | 59 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 15 | 15 | 15 | 23 | 23 | 23 | 44 | 44 | 44 | 60 |
| Relative Humidity (%) | 73 | 77 | 80 | 83 | 85 | 89 | 91 | 92 | 86 | 77 | 69 | 62 | 57 | 53 | 51 | 51 | 52 | 53 | 55 | 56 | 61 | 67 | 72 | 83 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Lkly |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Lkly |
| Date | 07/21 | |||||||||||||||||||||||
| Hour (CDT) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°F) | 75 | 74 | 74 | 73 | 72 | 71 | 71 | 71 | 72 | 74 | 76 | 78 | 80 | 82 | 83 | 83 | 83 | 83 | 82 | 80 | 78 | 76 | 72 | 70 |
| Dewpoint (°F) | 70 | 70 | 70 | 69 | 69 | 68 | 68 | 68 | 68 | 69 | 69 | 68 | 67 | 67 | 67 | 66 | 66 | 66 | 65 | 64 | 64 | 63 | 64 | 64 |
| Heat Index (°F) | 75 | 77 | 78 | 83 | 84 | 85 | 86 | 85 | 85 | 84 | 82 | 78 | 76 | |||||||||||
| Surface Wind (mph) | 14 | 13 | 11 | 11 | 10 | 10 | 10 | 11 | 11 | 13 | 14 | 15 | 16 | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 15 | 14 | 13 | 11 |
| Wind Dir | SW | SW | WSW | WSW | W | WSW | WSW | W | W | W | WNW | WNW | WNW | WNW | WNW | NW | NW | NW | NNW | NNW | NNW | N | N | N |
| Gust | 23 | 22 | 21 | 20 | 18 | 18 | 18 | 18 | 18 | 20 | 21 | 23 | 24 | 25 | 25 | 26 | 28 | 28 | 25 | 25 | 23 | 20 | 18 | 16 |
| Sky Cover (%) | 55 | 36 | 66 | 71 | 47 | 44 | 43 | 22 | 13 | 28 | 22 | 15 | 18 | 22 | 25 | 26 | 28 | 29 | 30 | 30 | 31 | 30 | 30 | 29 |
| Precipitation Potential (%) | 60 | 60 | 57 | 57 | 57 | 15 | 15 | 15 | 4 | 4 | 4 | 4 | 4 | 4 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Relative Humidity (%) | 86 | 87 | 88 | 89 | 89 | 90 | 90 | 89 | 88 | 83 | 77 | 71 | 65 | 61 | 58 | 57 | 57 | 58 | 58 | 59 | 61 | 65 | 75 | 81 |
| Rain | Lkly | Lkly | Lkly | Lkly | Lkly | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | Lkly | Lkly | Lkly | Lkly | Lkly | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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