From Businessweek:

Heat will grip the western and southern U.S., pushing temperatures to 100 degrees Fahrenheit (38 Celsius) or more from Pasadena to Dallas today, while the Great Plains and Midwest remain parched.

An excessive-heat warning has been issued for the mountains and valleys just north and east of Los Angeles as temperatures are expected to rise above 100 today and come close to that for the rest of the week, according to the National Weather Service.

High temperatures pushed California electricity prices to their highest point in a month last week, while the drought gripping U.S. agricultural states has cut corn harvest projection to a six-year low and has kept crop prices high throughout the summer.

In Pasadena, California, about 10 miles northeast of Los Angeles, today’s high may reach 103 and in Burbank the high may be 100, the weather service said. Downtown Los Angeles is expected to hit 92.

For more, see: California Heat Lingers, Midwest May Stay Dry Through Next Week