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
| 14 December 2025 Sun -11.7 ° C ( 10.9°F )  Partly cloudy |
Feels Like : -20.3 ° C / -4.6°F Humidity : % 76 Pressure : 1032 mb Wind Speed : 21.6 kmph / 13.4 miles from NNW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 50 |
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 |
|---|---|---|---|---|---|---|---|
| 13 December 2025 Sat |  Light freezing rain |
-11.9 ° C | -1 ° C | -4.3 ° C | % 78 | 21.6 km/h | 66% |
| 14 December 2025 Sun |  Sunny |
-13.9 ° C | -6.6 ° C | -10.7 ° C | % 58 | 20.9 km/h | 0% |
| 15 December 2025 Mon | Sunny |
-10.7 ° C | 5.4 ° C | -3.7 ° C | % 46 | 19.4 km/h | 0% |
| 16 December 2025 Tue | Partly Cloudy |
-0.8 ° C | 5.8 ° C | 2.3 ° C | % 53 | 16.6 km/h | 0% |
| 17 December 2025 Wed |  Overcast |
5.1 ° C | 10 ° C | 7.8 ° C | % 92 | 19.4 km/h | 0% |
| 18 December 2025 Thu |  Patchy rain nearby |
7.8 ° C | 14.9 ° C | 11.9 ° C | % 73 | 29.2 km/h | 72% |
| 19 December 2025 Fri | Sunny |
-0 ° C | 7.5 ° C | 3.8 ° C | % 42 | 22 km/h | 0% |
| 20 December 2025 Sat | Patchy rain nearby |
5.1 ° C | 17.8 ° C | 11 ° C | % 78 | 25.6 km/h | 80% |
| 21 December 2025 Sun | Partly Cloudy |
-1.7 ° C | 3.8 ° C | 0.7 ° C | % 45 | 23.8 km/h | 0% |
| 22 December 2025 Mon | Overcast |
-0.1 ° C | 7.7 ° C | 3.2 ° C | % 63 | 16.2 km/h | 0% |
| 23 December 2025 Tue | Sunny |
5.5 ° C | 11.4 ° C | 7.8 ° C | % 69 | 13.7 km/h | 0% |
| 24 December 2025 Wed | Patchy rain nearby |
2.5 ° C | 3.7 ° C | 3.3 ° C | % 72 | 14 km/h | 89% |
| 25 December 2025 Thu | Patchy rain nearby |
2.2 ° C | 6.4 ° C | 4.2 ° C | % 74 | 12.2 km/h | 74% |
| 26 December 2025 Fri |  Moderate rain |
4.5 ° C | 16.8 ° C | 8.5 ° C | % 94 | 19.4 km/h | 86% |
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