| Point Forecast: Corsicana TX 32.08N 96.47W (Elev. 433 ft) |
Last Update: 11:16 pm CDT May 18, 2026 |
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| Date | 05/19 | 05/20 | ||||||||||||||||||||||
| Hour (CDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°F) | 78 | 78 | 77 | 77 | 77 | 76 | 77 | 77 | 77 | 80 | 82 | 83 | 83 | 84 | 82 | 80 | 79 | 76 | 74 | 73 | 71 | 69 | 69 | 68 |
| Dewpoint (°F) | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 72 | 71 | 71 | 71 | 69 | 69 | 68 |
| Heat Index (°F) | 78 | 78 | 77 | 77 | 77 | 76 | 77 | 77 | 77 | 84 | 87 | 89 | 89 | 90 | 87 | 84 | 79 | 76 | ||||||
| Surface Wind (mph) | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 11 | 11 | 11 | 13 | 13 | 11 | 10 | 9 | 9 | 9 | 8 | 7 | 6 | 6 | 7 | 5 | 3 |
| Wind Dir | S | SSE | SSE | S | S | S | SSE | SSE | S | S | S | S | S | S | S | N | NE | ESE | ESE | SE | SSE | ESE | E | SE |
| Gust | 20 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 20 | 21 | 22 | 21 | 20 | 18 | ||||||||||
| Sky Cover (%) | 86 | 89 | 91 | 94 | 94 | 94 | 94 | 91 | 89 | 86 | 89 | 91 | 94 | 95 | 97 | 98 | 98 | 98 | 98 | 95 | 92 | 89 | 85 | 81 |
| Precipitation Potential (%) | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 10 | 10 | 10 | 30 | 30 | 30 | 96 | 96 | 96 | 77 | 77 | 77 | 27 | 27 | 27 |
| Relative Humidity (%) | 82 | 82 | 85 | 85 | 85 | 87 | 85 | 85 | 85 | 77 | 74 | 72 | 72 | 70 | 74 | 79 | 82 | 87 | 90 | 93 | 100 | 100 | 100 | 100 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Lkly | Lkly | Lkly | Chc | Chc | Chc | -- | -- | -- |
| Date | 05/21 | |||||||||||||||||||||||
| Hour (CDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°F) | 68 | 68 | 67 | 66 | 66 | 66 | 65 | 67 | 68 | 71 | 72 | 73 | 75 | 77 | 77 | 77 | 79 | 77 | 76 | 76 | 74 | 72 | 71 | 71 |
| Dewpoint (°F) | 68 | 68 | 67 | 66 | 66 | 66 | 65 | 67 | 68 | 70 | 71 | 72 | 72 | 73 | 73 | 73 | 73 | 72 | 72 | 72 | 71 | 71 | 71 | 70 |
| Heat Index (°F) | 75 | 77 | 77 | 77 | 79 | 77 | 76 | 76 | ||||||||||||||||
| Surface Wind (mph) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 2 |
| Wind Dir | ESE | SSW | SE | NE | NE | ENE | E | NE | ENE | ENE | ENE | ENE | ENE | E | E | ESE | ESE | ESE | ESE | ESE | ESE | E | E | E |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 77 | 80 | 83 | 86 | 89 | 92 | 95 | 93 | 92 | 90 | 88 | 87 | 85 | 84 | 84 | 83 | 82 | 82 | 81 | 32 | 52 | 72 | 73 | 74 |
| Precipitation Potential (%) | 27 | 27 | 27 | 18 | 18 | 18 | 10 | 10 | 10 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 20 | 20 | 20 | 20 | 20 | 20 |
| Relative Humidity (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 97 | 97 | 97 | 90 | 88 | 88 | 88 | 81 | 86 | 87 | 86 | 91 | 97 | 98 | 99 |
| Rain | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | SChc | SChc | SChc | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- |


