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 -13.3 ° C ( 8.1°F )  Clear |
Feels Like : -22 ° C / -7.6°F Humidity : % 57 Pressure : 1038 mb Wind Speed : 19.8 kmph / 12.3 miles from NNW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
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 |
|---|---|---|---|---|---|---|---|
| 14 December 2025 Sun | Sunny |
-14.3 ° C | -7.1 ° C | -11 ° C | % 54 | 20.9 km/h | 0% |
| 15 December 2025 Mon | Sunny |
-10.1 ° C | 4.7 ° C | -3.9 ° C | % 45 | 19.4 km/h | 0% |
| 16 December 2025 Tue |  Partly Cloudy |
-1.2 ° C | 5.8 ° C | 2 ° C | % 53 | 17.3 km/h | 0% |
| 17 December 2025 Wed |  Mist |
4.9 ° C | 10.1 ° C | 8 ° C | % 92 | 22.3 km/h | 0% |
| 18 December 2025 Thu |  Patchy rain nearby |
7.7 ° C | 15.6 ° C | 12.7 ° C | % 76 | 24.1 km/h | 77% |
| 19 December 2025 Fri |  Overcast |
4.8 ° C | 9.3 ° C | 7.1 ° C | % 46 | 21.2 km/h | 0% |
| 20 December 2025 Sat | Patchy rain nearby |
7.6 ° C | 18.4 ° C | 13.3 ° C | % 84 | 25.2 km/h | 83% |
| 21 December 2025 Sun | Sunny |
-0.1 ° C | 5.4 ° C | 2.6 ° C | % 50 | 22 km/h | 0% |
| 22 December 2025 Mon | Sunny |
1.3 ° C | 12 ° C | 6.7 ° C | % 56 | 28.4 km/h | 0% |
| 23 December 2025 Tue | Patchy rain nearby |
-1.2 ° C | 14 ° C | 7.4 ° C | % 59 | 28.4 km/h | 77% |
| 24 December 2025 Wed | Partly Cloudy |
-3.2 ° C | 0.5 ° C | -1.3 ° C | % 39 | 18.7 km/h | 0% |
| 25 December 2025 Thu |  Moderate rain |
-0.9 ° C | 0.8 ° C | 0.3 ° C | % 97 | 14.4 km/h | 74% |
| 26 December 2025 Fri |  Moderate snow |
-8.8 ° C | -2 ° C | -4 ° C | % 90 | 21.6 km/h | 62% |
| 27 December 2025 Sat |  Cloudy |
-10.3 ° C | -7 ° C | -8.4 ° C | % 83 | 13.3 km/h | 0% |
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