Lambert-St. Louis International Airport (STL) 15 Day Weather Forecast, Saint Louis United States
Current weather conditions and 15 day weather forecast for Lambert-St. Louis International Airport in Saint Louis, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at STL
| 03 August 2026 Mon 18.7 ° C ( 65.7°F )  Mist |
Feels Like : 20.2 ° C / 68.4°F Humidity : % 95 Pressure : 1014 mb Wind Speed : 6.8 kmph / 4.3 miles from N 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 3 |
15-day weather forecast for Lambert-St. Louis International Airport, Saint Louis, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 03 August 2026 Mon |  Sunny |
18.1 ° C | 32.7 ° C | 24.2 ° C | % 72 | 10.8 km/h | 6% |
| 04 August 2026 Tue | Sunny |
19.6 ° C | 32.6 ° C | 25.6 ° C | % 63 | 15.8 km/h | 4% |
| 05 August 2026 Wed | Sunny |
21.1 ° C | 36 ° C | 28.3 ° C | % 56 | 21.6 km/h | 3% |
| 06 August 2026 Thu | Sunny |
22.7 ° C | 34.2 ° C | 27.9 ° C | % 66 | 18.4 km/h | 57% |
| 07 August 2026 Fri | Sunny |
21.4 ° C | 37.9 ° C | 26.8 ° C | % 71 | 33.1 km/h | 70% |
| 08 August 2026 Sat | Sunny |
22.6 ° C | 36.1 ° C | 28.2 ° C | % 66 | 14.8 km/h | 57% |
| 09 August 2026 Sun | Sunny |
23.4 ° C | 36.1 ° C | 29.1 ° C | % 57 | 14.8 km/h | 3% |
| 10 August 2026 Mon | Sunny |
24.9 ° C | 37.9 ° C | 31.2 ° C | % 49 | 19.8 km/h | 2% |
| 11 August 2026 Tue | Sunny |
27.2 ° C | 38.5 ° C | 32.6 ° C | % 41 | 21.2 km/h | 1% |
| 12 August 2026 Wed | Sunny |
27 ° C | 39.8 ° C | 32.9 ° C | % 44 | 16.6 km/h | 2% |
| 13 August 2026 Thu | Sunny |
27.5 ° C | 41.3 ° C | 33.4 ° C | % 40 | 19.8 km/h | 1% |
| 14 August 2026 Fri | Sunny |
29.3 ° C | 39 ° C | 32.7 ° C | % 44 | 20.5 km/h | 2% |
| 15 August 2026 Sat | Sunny |
24.2 ° C | 29.7 ° C | 26.6 ° C | % 68 | 13 km/h | 58% |
| 16 August 2026 Sun | Sunny |
20.4 ° C | 29.2 ° C | 24.7 ° C | % 63 | 19.8 km/h | 5% |
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