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| Point Forecast: Rockwall TX 32.94N 96.43W (Elev. 182 m) |
Last Update: 7:44 am CDT Sep 18, 2021 |
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| Date | 09/18 | 09/19 | ||||||||||||||||||||||
| 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 (°C) | 22 | 25 | 28 | 31 | 32 | 32 | 32 | 33 | 33 | 33 | 33 | 32 | 30 | 26 | 25 | 24 | 24 | 23 | 23 | 23 | 22 | 22 | 22 | 22 |
| Dewpoint (°C) | 21 | 21 | 22 | 22 | 21 | 20 | 19 | 19 | 18 | 18 | 18 | 19 | 20 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 21 | 21 | 21 |
| Heat Index (°C) | 25 | 31 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 33 | 32 | 26 | 25 | 24 | 24 | ||||||||
| Surface Wind (mph) | 1 | 7 | 7 | 8 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 8 | 5 | 5 | 5 | 5 | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 3 |
| Wind Dir | NNE | NNE | NNE | N | NNE | N | NNE | N | NNE | NNE | NE | NE | ENE | E | E | E | E | E | E | E | E | ENE | ENE | ENE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 14 | 26 | 39 | 51 | 64 | 77 | 73 | 70 | 68 | 66 | 64 | 20 | 19 | 27 | 25 | 24 | 23 | 23 | 20 | 21 | 24 | 34 | 44 | 54 |
| Precipitation Potential (%) | 2 | 3 | 3 | 3 | 3 | 8 | 8 | 9 | 9 | 7 | 7 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 5 |
| Relative Humidity (%) | 90 | 79 | 67 | 59 | 54 | 49 | 47 | 44 | 42 | 42 | 42 | 47 | 55 | 72 | 76 | 82 | 84 | 87 | 90 | 93 | 97 | 93 | 97 | 97 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/20 | |||||||||||||||||||||||
| 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 (°C) | 22 | 24 | 27 | 29 | 30 | 31 | 32 | 32 | 32 | 32 | 32 | 31 | 29 | 28 | 26 | 25 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 22 |
| Dewpoint (°C) | 21 | 22 | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 21 | 21 |
| Heat Index (°C) | 24 | 29 | 32 | 33 | 33 | 34 | 34 | 35 | 34 | 34 | 33 | 31 | 30 | 26 | 25 | 24 | 24 | |||||||
| Surface Wind (mph) | 5 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 8 | 8 | 7 | 7 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 8 |
| Wind Dir | ENE | ENE | ENE | ENE | ENE | ENE | E | E | E | E | ESE | ESE | ESE | SE | SE | SE | SSE | SSE | SSE | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 53 | 52 | 50 | 41 | 31 | 22 | 22 | 22 | 22 | 19 | 16 | 13 | 13 | 13 | 12 | 10 | 8 | 6 | 5 | 5 | 4 | 8 | 11 | 14 |
| Precipitation Potential (%) | 5 | 5 | 5 | 5 | 5 | 10 | 10 | 10 | 10 | 10 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 93 | 85 | 72 | 63 | 59 | 57 | 52 | 50 | 50 | 50 | 50 | 52 | 57 | 69 | 77 | 82 | 85 | 87 | 90 | 93 | 97 | 100 | 97 | 93 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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