Upper panel of the plot shows population-weighted high and low temperature for each day (note: day-1 has high temperature only). Lower panel shows the forecast electricity demand for the service area of the company, in percentage of the normal demand expected under normal weather conditions during this 7-day period.
as observed at Greybull, South Big Horn County Airport
About Big Horn REA (WY): Serving 3,300 members in Big Horn, Park, Washakie, Johnson and Sheridan Counties in Wyoming and in Carbon and Big Horn Counties in Montana. (see website)