If you planning to travel to Gates of the Mountains Marina, Helena, Montana, 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 12:44 PM. The temperature feels like 39.599999999999994 with a humidity level of 55 so dress accordingly. Cloud coverage is 69 percent with visibility at 14 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 10 MPH. At the end of the day don’t miss the sunset at 2:13 AM.