If you planning to travel to Ak-Sar-Ben Aquarium, Gretna, Nebraska, 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 1:50 PM. The temperature feels like 17.150000000000002 with a humidity level of 89 so dress accordingly. Cloud coverage is 73 percent with visibility at 9.7 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 7 MPH. At the end of the day don’t miss the sunset at 11:17 PM.