| Point Forecast: Ballwin MO 38.58N 90.55W (Elev. 178 m) |
Last Update: 8:46 pm CDT Oct 11, 2026 |
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| Date | 10/11 | 10/12 | ||||||||||||||||||||||
| Hour (CDT) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°C) | 22 | 22 | 21 | 21 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 18 | 22 | 26 | 28 | 30 | 32 | 33 | 33 | 34 | 33 | 32 | 30 | 28 |
| Dewpoint (°C) | 15 | 15 | 14 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 16 | 16 | 16 |
| Heat Index (°C) | 26 | 29 | 30 | 32 | 33 | 33 | 34 | 33 | 32 | 30 | 28 | |||||||||||||
| Surface Wind (mph) | 2 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 7 | 6 | 6 |
| Wind Dir | SE | SE | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | S | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 15 | 26 | 50 | 18 | 20 | 21 | 23 | 24 | 29 | 33 | 14 | 14 | 0 | 1 | 3 | 1 | 2 | 5 | 2 | 7 | 14 | 2 | 4 | 9 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
| Relative Humidity (%) | 64 | 66 | 66 | 68 | 81 | 78 | 81 | 81 | 81 | 84 | 81 | 81 | 68 | 56 | 49 | 45 | 39 | 37 | 34 | 33 | 33 | 37 | 42 | 47 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 10/13 | |||||||||||||||||||||||
| Hour (CDT) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°C) | 27 | 26 | 25 | 25 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 23 | 24 | 27 | 28 | 30 | 31 | 32 | 33 | 33 | 33 | 31 | 29 | 30 |
| Dewpoint (°C) | 16 | 16 | 14 | 14 | 14 | 13 | 13 | 14 | 14 | 14 | 15 | 16 | 18 | 19 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Heat Index (°C) | 27 | 26 | 25 | 25 | 24 | 24 | 24 | 28 | 30 | 32 | 34 | 36 | 37 | 37 | 36 | 33 | 32 | 32 | ||||||
| Surface Wind (mph) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 7 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 5 | 3 | 3 | 5 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 7 | 2 | 14 | 16 | 12 | 20 | 16 | 30 | 30 | 31 | 21 | 22 | 13 | 3 | 7 | 11 | 15 | 15 | 15 | 15 | 21 | 26 | 32 | 36 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 7 | 7 |
| Relative Humidity (%) | 51 | 52 | 52 | 50 | 52 | 52 | 53 | 57 | 59 | 61 | 66 | 66 | 66 | 62 | 61 | 57 | 55 | 52 | 49 | 49 | 50 | 54 | 59 | 57 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
