If you planning to travel to Black Thunder Coal Mine, Gillette, Wyoming, 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 12:15 PM. The temperature feels like 31.450000000000003 with a humidity level of 86 so dress accordingly. Cloud coverage is 88 percent with visibility at 8 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southwest at a speed of 18 MPH. At the end of the day don’t miss the sunset at 1:48 AM.