If you planning to travel to Koyukuk River, 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 8:37 PM. The temperature feels like -8.15 with a humidity level of 70 so dress accordingly. Cloud coverage is 6 percent with visibility at 14.9 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling north at a speed of 8 MPH. At the end of the day don’t miss the sunset at 12:16 AM.