If you planning to travel to Great Falls, Great Falls, 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 12:06 PM. The temperature feels like 40.65 with a humidity level of 63 so dress accordingly. Cloud coverage is 21 percent with visibility at 15 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling northwest at a speed of 6 MPH. At the end of the day don’t miss the sunset at 9:48 PM.