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
| 19 December 2025 Fri 2.8 ° C ( 37°F )  Sunny |
Feels Like : -0.4 ° C / 31.3°F Humidity : % 32 Pressure : 1019 mb Wind Speed : 11.9 kmph / 7.4 miles from W 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
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 |
|---|---|---|---|---|---|---|---|
| 19 December 2025 Fri |  Partly Cloudy |
-2.5 ° C | 5.1 ° C | 0.2 ° C | % 62 | 33.5 km/h | 0% |
| 20 December 2025 Sat | Partly Cloudy |
0 ° C | 9.5 ° C | 3.2 ° C | % 69 | 22.3 km/h | 0% |
| 21 December 2025 Sun |  Mist |
-4 ° C | 4.7 ° C | 0.1 ° C | % 78 | 15.5 km/h | 0% |
| 22 December 2025 Mon |  Patchy rain nearby |
-0.3 ° C | 4 ° C | 1.8 ° C | % 44 | 17.6 km/h | 76% |
| 23 December 2025 Tue | Patchy rain nearby |
3.1 ° C | 13.2 ° C | 7.2 ° C | % 93 | 11.9 km/h | 89% |
| 24 December 2025 Wed | Partly Cloudy |
13.5 ° C | 20.5 ° C | 16.3 ° C | % 88 | 16.9 km/h | 0% |
| 25 December 2025 Thu | Partly Cloudy |
14.2 ° C | 20.8 ° C | 17 ° C | % 84 | 16.2 km/h | 0% |
| 26 December 2025 Fri |  Overcast |
5.6 ° C | 9.7 ° C | 9.9 ° C | % 73 | 22 km/h | 0% |
| 27 December 2025 Sat | Partly Cloudy |
2.2 ° C | 6.6 ° C | 4.4 ° C | % 65 | 15.8 km/h | 0% |
| 28 December 2025 Sun | Patchy rain nearby |
4.8 ° C | 10.3 ° C | 8.1 ° C | % 77 | 22.7 km/h | 89% |
| 29 December 2025 Mon |  Moderate rain |
7.1 ° C | 15.3 ° C | 13 ° C | % 85 | 34.6 km/h | 89% |
| 30 December 2025 Tue | Sunny |
3.4 ° C | 10 ° C | 6.6 ° C | % 61 | 13 km/h | 0% |
| 31 December 2025 Wed | Overcast |
-1.3 ° C | 6.4 ° C | 3.4 ° C | % 62 | 20.9 km/h | 0% |
| 01 January 2026 Thu | Sunny |
-4.5 ° C | -1.1 ° C | -3 ° C | % 48 | 22.3 km/h | 0% |
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