| NWS Forecast for: St.Thomas...St. John.. and Adjacent Islands Issued by: National Weather Service San Juan, PR Last Update: 243 AM AST Wed Sep 30 2026 | |
| Today: Variably cloudy with scattered showers. Breezy with highs around 94. East winds around 20 mph. Chance of rain 30 percent. Tonight: Breezy. Partly cloudy in the evening, then becoming variably cloudy. Scattered showers. Lows around 82. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 30 percent. Thursday: Breezy. Variably cloudy in the morning, then becoming partly cloudy. Scattered showers. Highs around 93. Temperature falling in the afternoon. East winds 15 to 20 mph. Chance of rain 30 percent. Thursday Night: Partly cloudy with isolated showers in the evening, then variably cloudy with scattered showers after midnight. Lows around 82. East winds around 15 mph with gusts up to 25 mph. Chance of rain 30 percent. Friday: Variably cloudy with scattered showers. Highs around 93. Temperature falling in the afternoon. East winds around 15 mph. Chance of rain 40 percent. Friday Night: Variably cloudy with scattered showers. Lows around 82. Chance of rain 30 percent. Saturday: Variably cloudy with scattered showers. Highs around 94. Temperature falling in the afternoon. Chance of rain 50 percent. Saturday Night: Breezy. Partly cloudy with isolated showers. Lows around 82. Chance of rain 20 percent. Sunday: Partly cloudy with isolated showers in the morning, then variably cloudy with scattered showers in the afternoon. Highs around 94. Temperature falling in the afternoon. Chance of rain 40 percent. Sunday Night: Partly cloudy with isolated showers. Lows around 82. Chance of rain 20 percent. Monday: Partly cloudy with isolated showers. Highs around 94. Temperature falling in the afternoon. Chance of rain 20 percent. Monday Night: Partly cloudy with isolated showers. Lows around 82. Chance of rain 20 percent. Tuesday: Partly cloudy with isolated showers. Highs around 93. Temperature falling in the afternoon. Chance of rain 20 percent. | |
| Zone Forecast: St.Thomas...St. John.. and Adjacent Islands | |
Visit your local NWS office at: https://www.weather.gov/sju |