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 April 2026 Fri 27.8 ° C ( 82°F )  Partly cloudy |
Feels Like : 29.4 ° C / 84.8°F Humidity : % 51 Pressure : 1014 mb Wind Speed : 21.6 kmph / 13.4 miles from S 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
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 April 2026 Fri |  Sunny |
16.3 ° C | 29.6 ° C | 22.5 ° C | % 70 | 22.7 km/h | 0% |
| 04 April 2026 Sat |  Heavy rain |
8.1 ° C | 18.6 ° C | 14 ° C | % 80 | 27.4 km/h | 83% |
| 05 April 2026 Sun | Sunny |
3 ° C | 17.1 ° C | 9.5 ° C | % 71 | 20.5 km/h | 0% |
| 06 April 2026 Mon | Partly Cloudy |
4.2 ° C | 14.8 ° C | 8.9 ° C | % 70 | 20.9 km/h | 0% |
| 07 April 2026 Tue |  Patchy rain nearby |
2.9 ° C | 11.1 ° C | 6.8 ° C | % 48 | 17.6 km/h | 88% |
| 08 April 2026 Wed | Sunny |
2.8 ° C | 20.9 ° C | 11.9 ° C | % 48 | 25.9 km/h | 0% |
| 09 April 2026 Thu |  Cloudy |
14.4 ° C | 18.3 ° C | 15.7 ° C | % 72 | 20.2 km/h | 0% |
| 10 April 2026 Fri | Patchy rain nearby |
13 ° C | 23.9 ° C | 17.1 ° C | % 73 | 16.6 km/h | 89% |
| 11 April 2026 Sat |  Moderate rain |
11.3 ° C | 15.9 ° C | 13.8 ° C | % 95 | 16.6 km/h | 88% |
| 12 April 2026 Sun | Moderate rain |
16 ° C | 24.5 ° C | 19.6 ° C | % 85 | 16.9 km/h | 88% |
| 13 April 2026 Mon | Patchy rain nearby |
17 ° C | 22.1 ° C | 19 ° C | % 85 | 19.4 km/h | 87% |
| 14 April 2026 Tue | Patchy rain nearby |
18 ° C | 27.2 ° C | 22 ° C | % 65 | 31 km/h | 75% |
| 15 April 2026 Wed | Partly Cloudy |
13.3 ° C | 21 ° C | 17.6 ° C | % 64 | 12.6 km/h | 0% |
| 16 April 2026 Thu | Cloudy |
13.3 ° C | 17.1 ° C | 15.8 ° C | % 71 | 14.4 km/h | 0% |
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