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
| 13 December 2025 Sat 1.1 ° C ( 34°F )  Overcast |
Feels Like : -2.7 ° C / 27.2°F Humidity : % 82 Pressure : 1022 mb Wind Speed : 13 kmph / 8.1 miles from NNW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
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 |
-9.7 ° C | -0.4 ° C | -2.8 ° C | % 78 | 20.9 km/h | 77% |
| 14 December 2025 Sun |  Sunny |
-12.7 ° C | -7.5 ° C | -9.7 ° C | % 57 | 20.5 km/h | 0% |
| 15 December 2025 Mon | Sunny |
-10.5 ° C | 3.6 ° C | -4.3 ° C | % 50 | 19.8 km/h | 0% |
| 16 December 2025 Tue | Sunny |
-0.2 ° C | 8.7 ° C | 3.6 ° C | % 74 | 15.5 km/h | 0% |
| 17 December 2025 Wed |  Mist |
5 ° C | 13.6 ° C | 7.9 ° C | % 90 | 21.6 km/h | 0% |
| 18 December 2025 Thu | Sunny |
6.6 ° C | 13.1 ° C | 11.6 ° C | % 57 | 22 km/h | 0% |
| 19 December 2025 Fri |  Patchy rain nearby |
4.8 ° C | 5.5 ° C | 5.5 ° C | % 71 | 17.6 km/h | 80% |
| 20 December 2025 Sat | Patchy rain nearby |
10.3 ° C | 17.9 ° C | 15.5 ° C | % 91 | 23 km/h | 81% |
| 21 December 2025 Sun | Patchy rain nearby |
7.1 ° C | 10.4 ° C | 10.4 ° C | % 82 | 17.3 km/h | 85% |
| 22 December 2025 Mon | Patchy rain nearby |
7.1 ° C | 18.4 ° C | 11.8 ° C | % 83 | 21.6 km/h | 86% |
| 23 December 2025 Tue | Sunny |
-0.3 ° C | 6.2 ° C | 4.6 ° C | % 62 | 22.7 km/h | 0% |
| 24 December 2025 Wed | Sunny |
-3.5 ° C | 2.7 ° C | -0.7 ° C | % 36 | 15.5 km/h | 0% |
| 25 December 2025 Thu | Overcast |
0.4 ° C | 7.9 ° C | 4.5 ° C | % 47 | 16.6 km/h | 0% |
| 26 December 2025 Fri | Overcast |
9 ° C | 16.9 ° C | 13.4 ° C | % 72 | 19.8 km/h | 0% |
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