Be sure to keep an eye on todayโs weather in Diamondville, Wyoming. Diamondville is a small town in Lincoln County, Wy. Take a look at the 7-day forecast for Diamondville above, which includes precipitation, air quality, and the temperature highs and lows. View the local weather for today and the weather for tomorrow. Be sure to take a live look at current weather conditions by clicking on webcams to the right.