If you planning to travel to River Park Marina, Port Saint Lucie, Florida, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 10:30 AM. The temperature feels like 87.80000000000001 with a humidity level of 75 so dress accordingly. Cloud coverage is 21 percent with visibility at 12.5 percent. Today’s UV index is 10, don’t forget the sunscreen if you need it! Today’s winds are traveling south at a speed of 6 MPH. At the end of the day don’t miss the sunset at 12:07 AM.