| Point Forecast: Naplate IL 41.33N 88.88W |
Last Update: 8:15 am CDT Aug 16, 2026 |
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| Date | 08/16 | 08/17 | ||||||||||||||||||||||
| Hour (CDT) | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Temperature (°F) | 75 | 76 | 78 | 80 | 82 | 83 | 84 | 84 | 84 | 83 | 81 | 79 | 77 | 75 | 73 | 72 | 71 | 71 | 70 | 69 | 68 | 67 | 67 | 67 |
| Dewpoint (°F) | 73 | 74 | 74 | 75 | 75 | 75 | 75 | 75 | 75 | 74 | 74 | 72 | 71 | 70 | 69 | 68 | 67 | 66 | 65 | 64 | 64 | 63 | 63 | 63 |
| Heat Index (°F) | 75 | 76 | 78 | 85 | 88 | 91 | 92 | 92 | 91 | 89 | 87 | 83 | 77 | 75 | ||||||||||
| Surface Wind (mph) | 7 | 8 | 9 | 9 | 10 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 7 | 6 | 7 | 7 | 6 | 6 | 5 |
| Wind Dir | W | W | WNW | WNW | WNW | WNW | WNW | WNW | WNW | W | WNW | WNW | WNW | NW | NW | NW | NW | WNW | NW | NW | WNW | WNW | WNW | NW |
| Gust | 13 | 14 | 15 | 15 | 15 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | ||||||||||||
| Sky Cover (%) | 83 | 85 | 87 | 84 | 81 | 78 | 73 | 70 | 66 | 66 | 66 | 60 | 57 | 54 | 50 | 47 | 45 | 44 | 42 | 41 | 36 | 35 | 33 | 31 |
| Precipitation Potential (%) | 16 | 10 | 8 | 6 | 7 | 8 | 11 | 18 | 22 | 23 | 18 | 8 | 6 | 5 | 4 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 94 | 92 | 89 | 85 | 80 | 78 | 76 | 76 | 75 | 76 | 77 | 79 | 80 | 84 | 85 | 85 | 85 | 85 | 84 | 85 | 86 | 86 | 87 | 87 |
| Rain | SChc | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/18 | |||||||||||||||||||||||
| Hour (CDT) | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Temperature (°F) | 69 | 72 | 75 | 77 | 79 | 80 | 80 | 80 | 80 | 80 | 79 | 78 | 75 | 73 | 71 | 69 | 68 | 67 | 66 | 66 | 65 | 64 | 64 | 65 |
| Dewpoint (°F) | 64 | 66 | 67 | 67 | 66 | 66 | 65 | 65 | 65 | 66 | 66 | 68 | 66 | 65 | 64 | 64 | 63 | 63 | 63 | 62 | 62 | 61 | 61 | 62 |
| Heat Index (°F) | 75 | 77 | 79 | 82 | 82 | 82 | 82 | 82 | 81 | 78 | 75 | |||||||||||||
| Surface Wind (mph) | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 7 | 5 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 |
| Wind Dir | N | NNE | NNE | N | NNW | NW | NW | NW | NW | NW | WNW | W | W | WSW | SW | SW | SW | WSW | SW | SW | SW | SW | SSW | SSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 29 | 30 | 36 | 39 | 44 | 48 | 47 | 45 | 41 | 35 | 24 | 16 | 9 | 7 | 11 | 16 | 20 | 22 | 20 | 19 | 22 | 31 | 34 | 36 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 84 | 79 | 75 | 69 | 65 | 62 | 60 | 59 | 60 | 61 | 64 | 71 | 74 | 77 | 80 | 82 | 85 | 86 | 88 | 88 | 89 | 90 | 91 | 90 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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