| Point Forecast: 3 Miles NNE Vienna IL 37.44N 88.88W |
Last Update: 3:16 pm CDT Aug 9, 2026 |
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| Date | 08/09 | 08/10 | ||||||||||||||||||||||
| Hour (CDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°F) | 89 | 87 | 84 | 80 | 79 | 77 | 76 | 76 | 75 | 75 | 74 | 74 | 73 | 75 | 77 | 80 | 86 | 89 | 91 | 93 | 94 | 94 | 93 | 93 |
| Dewpoint (°F) | 74 | 74 | 75 | 74 | 74 | 73 | 73 | 73 | 72 | 72 | 72 | 72 | 71 | 72 | 74 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
| Heat Index (°F) | 98 | 95 | 92 | 85 | 79 | 77 | 76 | 76 | 75 | 75 | 75 | 77 | 85 | 95 | 99 | 102 | 105 | 106 | 106 | 105 | 105 | |||
| Surface Wind (mph) | 8 | 6 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 6 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 |
| Wind Dir | SSW | SSW | S | S | S | S | S | S | S | S | S | S | S | S | SSW | SSW | SW | SW | SW | SW | SSW | SSW | SSW | SSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 13 | 27 | 18 | 17 | 9 | 10 | 14 | 11 | 8 | 7 | 8 | 2 | 3 | 15 | 6 | 10 | 6 | 16 | 20 | 18 | 20 | 11 | 5 | 3 |
| Precipitation Potential (%) | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 3 | 3 | 3 | 3 | 1 | 2 | 2 | 2 | 2 | 2 | 0 |
| Relative Humidity (%) | 61 | 65 | 74 | 82 | 85 | 88 | 90 | 90 | 90 | 90 | 93 | 93 | 93 | 90 | 90 | 85 | 70 | 64 | 60 | 56 | 54 | 54 | 56 | 56 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/11 | |||||||||||||||||||||||
| Hour (CDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°F) | 92 | 89 | 85 | 83 | 81 | 80 | 79 | 79 | 78 | 77 | 77 | 77 | 75 | 77 | 79 | 83 | 87 | 90 | 92 | 93 | 94 | 94 | 94 | 93 |
| Dewpoint (°F) | 75 | 75 | 75 | 75 | 74 | 73 | 73 | 72 | 72 | 71 | 71 | 71 | 71 | 72 | 73 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 |
| Heat Index (°F) | 103 | 99 | 94 | 90 | 86 | 84 | 79 | 79 | 78 | 77 | 77 | 77 | 75 | 77 | 79 | 90 | 95 | 99 | 102 | 103 | 105 | 105 | 105 | 103 |
| Surface Wind (mph) | 8 | 6 | 5 | 5 | 5 | 5 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 7 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 8 |
| Wind Dir | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SW | SSW | SSW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 18 | 16 | 4 | 1 | 0 | 8 | 5 | 7 | 4 | 3 | 6 | 5 | 1 | 0 | 10 | 8 | 6 | 7 | 8 | 9 | 10 | 10 | 11 | 10 |
| Precipitation Potential (%) | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 58 | 64 | 72 | 77 | 79 | 79 | 82 | 79 | 82 | 82 | 82 | 82 | 87 | 85 | 82 | 74 | 65 | 60 | 56 | 54 | 53 | 53 | 53 | 54 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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