Waldo, Arkansas. Waldo is a town in Columbia County, Arkansas, United States. The population was 1,372 at the 2010 census.
Reston is a census-designated place (CDP) in Fairfax County, Virginia, United States, within the Washington, D.C. metropolitan area. The population was 58,404, at the 2010 Census and 56,407 at the 2000 census.
Reston, VA Weather. The average temperature of Reston is 54.03Â°F, which is lower than the Virginia average temperature of 55.54Â°F and is about the same as the national average temperature of 54.45Â°F. Topics: Heating Cost Index Cooling Cost Index Historical Temperature Historical Precipitation Historical Snow Historical Humidity Historical Wind Speed Historical Weather