| Point Forecast: Lambert-St. Louis International Airport MO 38.76N 90.37W (Elev. 551 ft) |
Last Update: 9:37 pm CDT Jul 8, 2025 |
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| Date | 07/08 | 07/09 | ||||||||||||||||||||||
| Hour (CDT) | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Temperature (°F) | 73 | 74 | 74 | 75 | 74 | 73 | 73 | 73 | 72 | 73 | 75 | 77 | 80 | 81 | 84 | 85 | 86 | 86 | 86 | 86 | 86 | 85 | 83 | 81 |
| Dewpoint (°F) | 70 | 70 | 70 | 70 | 70 | 69 | 69 | 70 | 70 | 70 | 70 | 71 | 71 | 70 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 |
| Heat Index (°F) | 75 | 75 | 77 | 83 | 85 | 88 | 89 | 90 | 90 | 90 | 90 | 90 | 89 | 87 | 84 | |||||||||
| Surface Wind (mph) | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 6 | 3 | 2 |
| Wind Dir | E | S | SW | SW | W | W | W | W | W | W | W | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | N | E | E |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 69 | 72 | 67 | 63 | 61 | 58 | 56 | 52 | 48 | 43 | 40 | 37 | 34 | 33 | 32 | 33 | 34 | 32 | 30 | 28 | 26 | 26 | 26 | 25 |
| Precipitation Potential (%) | 5 | 6 | 7 | 9 | 9 | 8 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 8 | 12 | 16 | 14 | 13 | 12 | 9 | 6 |
| Relative Humidity (%) | 90 | 87 | 87 | 84 | 87 | 87 | 87 | 90 | 93 | 90 | 84 | 82 | 74 | 69 | 61 | 59 | 57 | 57 | 57 | 57 | 57 | 59 | 63 | 67 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | -- | -- | -- | -- | -- |
| Date | 07/10 | |||||||||||||||||||||||
| Hour (CDT) | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Temperature (°F) | 80 | 79 | 78 | 77 | 76 | 75 | 75 | 74 | 74 | 75 | 77 | 80 | 83 | 85 | 87 | 88 | 88 | 88 | 87 | 87 | 86 | 85 | 83 | 82 |
| Dewpoint (°F) | 69 | 70 | 70 | 70 | 70 | 69 | 69 | 69 | 70 | 70 | 70 | 70 | 70 | 70 | 69 | 69 | 69 | 69 | 69 | 69 | 68 | 68 | 69 | 69 |
| Heat Index (°F) | 83 | 79 | 78 | 77 | 76 | 75 | 75 | 75 | 77 | 83 | 87 | 90 | 91 | 92 | 92 | 92 | 91 | 91 | 89 | 88 | 87 | 85 | ||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 |
| Wind Dir | E | SE | S | SW | SW | SW | SW | SW | S | S | S | S | S | S | S | S | S | SE | SE | SE | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 25 | 25 | 26 | 26 | 26 | 27 | 27 | 27 | 24 | 48 | 37 | 27 | 16 | 23 | 29 | 36 | 37 | 39 | 40 | 42 | 44 | 46 | 46 | 46 |
| Precipitation Potential (%) | 2 | 2 | 2 | 1 | 2 | 3 | 3 | 5 | 6 | 6 | 6 | 6 | 18 | 18 | 18 | 25 | 25 | 25 | 25 | 25 | 25 | 20 | 20 | 20 |
| Relative Humidity (%) | 69 | 74 | 76 | 79 | 82 | 82 | 82 | 84 | 87 | 84 | 79 | 72 | 65 | 61 | 55 | 54 | 54 | 54 | 55 | 55 | 55 | 57 | 63 | 65 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc |
