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| Point Forecast: Harlingen TX 26.19N 97.7W |
Last Update: 12:45 pm CDT May 16, 2021 |
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| Date | 05/16 | 05/17 | ||||||||||||||||||||||
| Hour (CDT) | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |
| Temperature (°C) | 29 | 30 | 31 | 31 | 31 | 29 | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| Dewpoint (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 23 |
| Heat Index (°C) | 33 | 34 | 36 | 36 | 35 | 33 | 31 | 30 | 29 | 28 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 24 | 25 | 26 | 29 | 32 | 33 | 34 |
| Surface Wind (mph) | 17 | 18 | 18 | 17 | 16 | 17 | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 11 | 10 | 13 | 15 | 17 | 17 | 18 |
| Wind Dir | SSE | SSE | SSE | SSE | SSE | SSE | SE | SE | SE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SE | SE | SSE | SSE | SSE | SSE | SSE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 95 | 91 | 78 | 80 | 80 | 62 | 57 | 73 | 86 | 87 | 92 | 97 | 96 | 97 | 95 | 96 | 95 | 87 | 79 | 75 | 70 | 66 | 58 | 51 |
| Precipitation Potential (%) | 34 | 34 | 34 | 34 | 34 | 34 | 19 | 19 | 19 | 19 | 19 | 19 | 9 | 9 | 9 | 9 | 9 | 9 | 3 | 3 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 70 | 65 | 63 | 62 | 65 | 68 | 75 | 79 | 83 | 85 | 85 | 86 | 88 | 89 | 90 | 91 | 92 | 92 | 91 | 88 | 83 | 78 | 72 | 66 |
| Rain | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/18 | |||||||||||||||||||||||
| Hour (CDT) | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |
| Temperature (°C) | 31 | 32 | 32 | 33 | 32 | 31 | 30 | 29 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 28 | 29 | 30 | 31 |
| Dewpoint (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 |
| Heat Index (°C) | 36 | 37 | 37 | 37 | 37 | 36 | 34 | 33 | 31 | 29 | 28 | 28 | 28 | 28 | 26 | 26 | 26 | 26 | 26 | 29 | 31 | 33 | 35 | 36 |
| Surface Wind (mph) | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 15 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 15 | 17 | 20 | 21 | 21 |
| Wind Dir | SSE | SSE | SSE | SSE | SSE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 43 | 39 | 34 | 30 | 23 | 15 | 15 | 23 | 32 | 40 | 46 | 51 | 57 | 58 | 59 | 60 | 62 | 64 | 66 | 64 | 61 | 59 | 57 | 54 |
| Precipitation Potential (%) | 3 | 3 | 3 | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 61 | 58 | 56 | 56 | 58 | 61 | 66 | 73 | 79 | 84 | 87 | 88 | 88 | 88 | 88 | 88 | 90 | 91 | 91 | 86 | 80 | 74 | 69 | 64 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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