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
| 20 December 2025 Sat 12.2 ° C ( 54°F )  Clear |
Feels Like : 10.6 ° C / 51°F Humidity : % 53 Pressure : 1021 mb Wind Speed : 15.5 kmph / 9.6 miles from NNW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
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 |
|---|---|---|---|---|---|---|---|
| 20 December 2025 Sat | Sunny |
10.1 ° C | 18.6 ° C | 14.6 ° C | % 72 | 15.5 km/h | 0% |
| 21 December 2025 Sun |  Mist |
11.9 ° C | 18.7 ° C | 15 ° C | % 91 | 13.3 km/h | 0% |
| 22 December 2025 Mon |  Patchy rain nearby |
12.9 ° C | 18.8 ° C | 16.4 ° C | % 89 | 23 km/h | 70% |
| 23 December 2025 Tue | Patchy rain nearby |
17.4 ° C | 21.1 ° C | 19 ° C | % 79 | 20.5 km/h | 89% |
| 24 December 2025 Wed | Sunny |
16.6 ° C | 20.5 ° C | 17.8 ° C | % 83 | 9.7 km/h | 0% |
| 25 December 2025 Thu | Sunny |
16.4 ° C | 21.1 ° C | 18.3 ° C | % 79 | 9 km/h | 0% |
| 26 December 2025 Fri | Sunny |
15 ° C | 22 ° C | 18.2 ° C | % 73 | 10.4 km/h | 0% |
| 27 December 2025 Sat | Sunny |
14.5 ° C | 22 ° C | 17.9 ° C | % 72 | 10.1 km/h | 0% |
| 28 December 2025 Sun | Sunny |
15.2 ° C | 21.4 ° C | 17.9 ° C | % 75 | 9 km/h | 0% |
| 29 December 2025 Mon | Sunny |
15.5 ° C | 20.9 ° C | 18 ° C | % 80 | 9.4 km/h | 0% |
| 30 December 2025 Tue | Sunny |
15.4 ° C | 22.2 ° C | 18.4 ° C | % 77 | 14.8 km/h | 0% |
| 31 December 2025 Wed | Sunny |
16.4 ° C | 24 ° C | 20.1 ° C | % 72 | 18.4 km/h | 0% |
| 01 January 2026 Thu | Sunny |
13.9 ° C | 18.7 ° C | 16.9 ° C | % 58 | 15.8 km/h | 0% |
| 02 January 2026 Fri |  Partly Cloudy |
11.1 ° C | 16.1 ° C | 13.4 ° C | % 57 | 12.2 km/h | 0% |
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