| Point Forecast: 2 Miles SSE San Antonio TX 29.44N 98.5W (Elev. 198 m) |
Last Update: 7:42 pm CDT May 20, 2026 |
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| Date | 05/20 | 05/21 | ||||||||||||||||||||||
| Hour (CDT) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°C) | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 24 | 24 | 25 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 24 | 24 |
| Dewpoint (°C) | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 |
| Heat Index (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 26 | 26 | 26 | 26 | 29 | 26 | 26 | 24 | 24 | |||||||
| Surface Wind (mph) | 7 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 3 | 3 | 2 |
| Wind Dir | E | E | ESE | E | SE | NE | NW | E | N | NE | E | E | ESE | SE | SSE | S | S | S | SSE | SSE | SSE | SE | ESE | ESE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 83 | 80 | 85 | 82 | 86 | 87 | 86 | 86 | 86 | 88 | 89 | 82 | 69 | 70 | 59 | 47 | 62 | 53 | 46 | 42 | 42 | 58 | 68 | 73 |
| Precipitation Potential (%) | 18 | 18 | 42 | 42 | 42 | 56 | 56 | 56 | 36 | 36 | 36 | 30 | 30 | 30 | 29 | 29 | 29 | 38 | 38 | 38 | 42 | 42 | 42 | 26 |
| Relative Humidity (%) | 81 | 82 | 82 | 85 | 85 | 86 | 86 | 91 | 88 | 91 | 97 | 90 | 87 | 85 | 82 | 79 | 77 | 77 | 79 | 77 | 77 | 79 | 84 | 84 |
| Rain | SChc | SChc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc |
| Date | 05/22 | |||||||||||||||||||||||
| Hour (CDT) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°C) | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 24 | 26 | 27 | 28 | 29 | 29 | 30 | 29 | 29 | 28 | 27 | 26 | 25 |
| Dewpoint (°C) | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 21 | 21 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Heat Index (°C) | 24 | 26 | 30 | 32 | 32 | 33 | 33 | 33 | 32 | 31 | 29 | 26 | 25 | |||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 6 | 5 |
| Wind Dir | SE | SE | SE | SE | SSE | SSE | SSE | ESE | SSE | S | S | S | S | S | S | S | S | S | S | SSE | SE | SE | SE | SE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 76 | 81 | 80 | 79 | 79 | 74 | 80 | 74 | 71 | 64 | 66 | 68 | 63 | 57 | 52 | 50 | 47 | 45 | 41 | 36 | 32 | 30 | 28 | 26 |
| Precipitation Potential (%) | 26 | 26 | 15 | 15 | 15 | 18 | 18 | 18 | 15 | 15 | 15 | 15 | 15 | 15 | 26 | 26 | 26 | 26 | 26 | 26 | 47 | 47 | 47 | 47 |
| Relative Humidity (%) | 90 | 87 | 87 | 90 | 90 | 87 | 87 | 90 | 87 | 90 | 87 | 85 | 82 | 77 | 72 | 70 | 65 | 63 | 65 | 67 | 70 | 74 | 77 | 82 |
| Rain | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc |


