Isla Grande Airport (SIG) 15 Day Weather Forecast, San Juan Puerto Rico
Current weather conditions and 15 day weather forecast for Isla Grande Airport in San Juan, Puerto Rico 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 SIG
| 31 January 2026 Sat 28.1 ° C ( 82.6°F )  Partly cloudy |
Feels Like : 31.2 ° C / 88.2°F Humidity : % 74 Pressure : 1014 mb Wind Speed : 23.4 kmph / 14.5 miles from SE 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15-day weather forecast for Isla Grande Airport, San Juan, Puerto Rico
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 31 January 2026 Sat |  Patchy rain nearby |
23.5 ° C | 29.8 ° C | 26.3 ° C | % 85 | 23.4 km/h | 79% |
| 01 February 2026 Sun | Patchy rain nearby |
24.4 ° C | 31.6 ° C | 27 ° C | % 81 | 14.4 km/h | 60% |
| 02 February 2026 Mon |  Heavy rain |
24.2 ° C | 28 ° C | 25.5 ° C | % 91 | 28.4 km/h | 76% |
| 03 February 2026 Tue | Heavy rain |
22.8 ° C | 24.2 ° C | 23.7 ° C | % 90 | 31.3 km/h | 85% |
| 04 February 2026 Wed |  Moderate rain |
23 ° C | 25 ° C | 24 ° C | % 85 | 28.8 km/h | 81% |
| 05 February 2026 Thu | Patchy rain nearby |
22.3 ° C | 27.8 ° C | 24.3 ° C | % 80 | 18 km/h | 0% |
| 06 February 2026 Fri |  Sunny |
22.6 ° C | 28.6 ° C | 25 ° C | % 72 | 9.7 km/h | 0% |
| 07 February 2026 Sat | Moderate rain |
22.8 ° C | 25.2 ° C | 24 ° C | % 83 | 25.2 km/h | 89% |
| 08 February 2026 Sun | Patchy rain nearby |
23.7 ° C | 24.9 ° C | 24.1 ° C | % 83 | 26.3 km/h | 81% |
| 09 February 2026 Mon | Patchy rain nearby |
23.5 ° C | 26.4 ° C | 24.7 ° C | % 81 | 22.3 km/h | 87% |
| 10 February 2026 Tue | Patchy rain nearby |
22.4 ° C | 27.1 ° C | 24.5 ° C | % 77 | 25.2 km/h | 85% |
| 11 February 2026 Wed | Partly Cloudy |
22.8 ° C | 27.6 ° C | 24.7 ° C | % 74 | 21.6 km/h | 0% |
| 12 February 2026 Thu | Patchy rain nearby |
22.9 ° C | 27.2 ° C | 24.6 ° C | % 77 | 22.7 km/h | 81% |
| 13 February 2026 Fri | Sunny |
22 ° C | 28.1 ° C | 24.3 ° C | % 70 | 19.8 km/h | 0% |
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