St. Augustine Airport (UST) 15 Day Weather Forecast, Saint Augustine United States
Current weather conditions and 15 day weather forecast for St. Augustine Airport in Saint Augustine, 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 UST
| 18 December 2025 Thu 21.7 ° C ( 71.1°F )  Sunny |
Feels Like : 21.7 ° C / 71.1°F Humidity : % 87 Pressure : 1016 mb Wind Speed : 16.2 kmph / 10.1 miles from SSE 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
15-day weather forecast for St. Augustine Airport, Saint Augustine, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 18 December 2025 Thu |  Moderate rain |
15.6 ° C | 22.8 ° C | 19.2 ° C | % 86 | 22.7 km/h | 84% |
| 19 December 2025 Fri |  Partly Cloudy |
19.4 ° C | 25.8 ° C | 22.1 ° C | % 76 | 24.1 km/h | 0% |
| 20 December 2025 Sat |  Overcast |
13.6 ° C | 20.6 ° C | 17.6 ° C | % 71 | 14.4 km/h | 0% |
| 21 December 2025 Sun | Sunny |
12.2 ° C | 19 ° C | 15.3 ° C | % 67 | 10.8 km/h | 0% |
| 22 December 2025 Mon | Sunny |
14.6 ° C | 19.2 ° C | 16.4 ° C | % 75 | 20.9 km/h | 0% |
| 23 December 2025 Tue |  Patchy rain nearby |
17.3 ° C | 18.6 ° C | 18.1 ° C | % 88 | 21.6 km/h | 86% |
| 24 December 2025 Wed | Partly Cloudy |
16 ° C | 20.5 ° C | 18.2 ° C | % 84 | 10.4 km/h | 0% |
| 25 December 2025 Thu | Sunny |
15.6 ° C | 23.6 ° C | 19 ° C | % 75 | 14.4 km/h | 0% |
| 26 December 2025 Fri | Sunny |
15.8 ° C | 24.5 ° C | 19.6 ° C | % 78 | 16.6 km/h | 0% |
| 27 December 2025 Sat | Partly Cloudy |
15.2 ° C | 18.6 ° C | 17.1 ° C | % 76 | 20.5 km/h | 0% |
| 28 December 2025 Sun | Sunny |
12.5 ° C | 19.4 ° C | 15.6 ° C | % 57 | 15.8 km/h | 0% |
| 29 December 2025 Mon | Sunny |
9.2 ° C | 13.9 ° C | 11.3 ° C | % 58 | 21.6 km/h | 0% |
| 30 December 2025 Tue | Sunny |
8.2 ° C | 12.4 ° C | 10.1 ° C | % 55 | 20.5 km/h | 0% |
| 31 December 2025 Wed | Partly Cloudy |
10.5 ° C | 16 ° C | 13.4 ° C | % 62 | 21.2 km/h | 0% |
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