| Point Forecast: 3 Miles ENE Mount Vernon IL 38.33N 88.86W |
Last Update: 1:26 am CDT Jun 13, 2026 |
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| Date | 06/13 | 06/14 | ||||||||||||||||||||||
| Hour (CDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 64 | 64 | 63 | 64 | 63 | 67 | 72 | 76 | 79 | 81 | 82 | 83 | 85 | 85 | 85 | 86 | 84 | 82 | 81 | 76 | 75 | 74 | 73 | 72 |
| Dewpoint (°F) | 59 | 59 | 59 | 59 | 59 | 61 | 63 | 65 | 66 | 67 | 68 | 69 | 70 | 70 | 70 | 71 | 71 | 71 | 71 | 70 | 70 | 70 | 70 | 70 |
| Heat Index (°F) | 76 | 79 | 83 | 85 | 87 | 90 | 90 | 90 | 91 | 89 | 86 | 85 | 76 | 75 | ||||||||||
| Surface Wind (mph) | 0 | 0 | 0 | 1 | 1 | 2 | 2 | 5 | 6 | 7 | 7 | 8 | 7 | 7 | 8 | 8 | 7 | 6 | 5 | 3 | 3 | 3 | 5 | 5 |
| Wind Dir | S | N | SE | SE | SE | SSE | S | S | S | SSW | SSW | SSW | SSW | S | SSW | SSW | S | S | S | S | S | S | SSW | WSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 21 | 31 | 27 | 34 | 30 | 30 | 42 | 46 | 65 | 74 | 77 | 78 | 63 | 59 | 63 | 59 | 77 | 59 | 59 | 56 | 46 | 75 | 86 | 87 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 3 | 4 | 4 | 9 | 14 | 19 | 26 | 29 | 39 | 42 | 38 | 30 | 32 | 44 | 71 | 75 | 77 |
| Relative Humidity (%) | 84 | 84 | 87 | 84 | 87 | 81 | 73 | 69 | 64 | 63 | 63 | 63 | 61 | 61 | 61 | 61 | 65 | 69 | 72 | 82 | 84 | 87 | 90 | 93 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Ocnl | Ocnl |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc |
| Date | 06/15 | |||||||||||||||||||||||
| Hour (CDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 72 | 72 | 71 | 70 | 70 | 69 | 70 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 75 | 75 | 74 | 70 | 67 | 65 | 63 | 61 | 60 |
| Dewpoint (°F) | 69 | 69 | 69 | 68 | 68 | 68 | 68 | 66 | 64 | 63 | 61 | 60 | 59 | 58 | 57 | 57 | 56 | 56 | 56 | 56 | 55 | 55 | 55 | 55 |
| Heat Index (°F) | 75 | 76 | 77 | 75 | 75 | |||||||||||||||||||
| Surface Wind (mph) | 5 | 6 | 6 | 6 | 8 | 9 | 10 | 11 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 11 | 9 | 6 | 3 | 2 | 1 | 1 | 1 |
| Wind Dir | WNW | SW | SW | W | W | W | W | NW | NW | NW | NW | NW | NW | NW | NW | NW | NNW | NNW | NNW | NNW | NW | NW | NNW | NNW |
| Gust | 18 | 18 | 18 | 18 | 18 | 20 | 20 | 20 | 18 | |||||||||||||||
| Sky Cover (%) | 81 | 83 | 84 | 85 | 87 | 85 | 71 | 77 | 64 | 73 | 59 | 43 | 31 | 19 | 10 | 19 | 26 | 17 | 36 | 31 | 25 | 27 | 30 | 32 |
| Precipitation Potential (%) | 79 | 57 | 38 | 42 | 32 | 23 | 21 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 90 | 90 | 93 | 93 | 93 | 97 | 93 | 87 | 79 | 73 | 66 | 62 | 58 | 54 | 50 | 54 | 52 | 53 | 61 | 68 | 70 | 75 | 81 | 84 |
| Rain | Ocnl | Lkly | Chc | Chc | Chc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | SChc | SChc | -- | -- | -- | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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