Weather Forecast for Big Thunder Gold Mine, Keystone, South Dakota

If you planning to travel to Big Thunder Gold Mine, Keystone, South Dakota, 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 11:51 AM. The temperature feels like 49.9 with a humidity level of 77 so dress accordingly. Cloud coverage is 81 percent with visibility at 11 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling north-northwest at a speed of 17 MPH. At the end of the day don’t miss the sunset at 1:52 AM.