Traveling to Grand Anse Bay, Castries, St. Lucia? Here is your 6-day weather forecast in the area. Whether it is a warm weather destinations or cold climate don’t forget to consider weather, while you pack your bags for this trip. Start your day when the sunrises at 10:22 AM and don’t miss the sunset at 9:37 PM. Today’s winds are traveling east at a speed of 11 MPH. The temperature feels like 82 with a humidity level of 83. Cloud coverage is 18 percent with 14.4 percent visibility. Today’s UV index is 7 make sure to prepare properly. Make sure to plan your travel itinerary to match your travel weather forecast to make the most of your vacation with Reservations.com.