If you planning to travel to Jamestown Windmill, Jamestown, Rhode Island, 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 11:45 AM. The temperature feels like 41 with a humidity level of 69 so dress accordingly. Cloud coverage is 12 percent with visibility at 14.4 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 15 MPH. At the end of the day don’t miss the sunset at 9:19 PM.