Temperatures in Texas and Oklahoma are forecast to rise into the 90s Fahrenheit (30s Celsius) and higher by the weekend before cooler weather takes hold across the Midwest next week.
Dallas will reach 100 degrees by July 12, while readings in the mid-90s persist in Houston, the National Weather Service said. Tulsa, Oklahoma, may reach 101.
“Seasonable hot and humid conditions are expected during the next couple of days,” Andover, Massachusetts-based Weather Services International said in its forecast for the area. “Above-average heat is expected during the end of the week into the weekend.”
Higher-than-normal temperatures can increase energy demand as more people turn to air conditioning to cool homes and businesses, while lower ones often mean less power is used.
About 10 percent more energy will be used across central Texas and the U.S. South, as well as New York City, from July 10 to 16, according to David Salmon, owner of Weather Derivatives in Belton, Missouri.
Across the northern Great Plains, 30 to 60 percent less will be used as cooler air drifts into the region.
Temperatures across a large part of the Plains and Midwest, including Chicago, are forecast to fall at least 8 degrees below normal from July 14 to 18, said Matt Rogers, president of Commodity Weather Group LLC in Bethesda, Maryland.
“After a warm-prevailing variable June pattern, the July story continues to show a cool-prevailing side instead,” Rogers said in his forecast. “The biggest reduction is found in the Midwest, with low temperatures next week potentially matching or hitting new records for the middle of July.”
In the Pacific Northwest, higher temperatures will prevail at least through the middle of the month, MDA Weather Services said. Readings will be more than 5 degrees above normal across Washington, Oregon and Idaho through July 18 and at least 3 degrees higher through July 23, said MDA, based in Gaithersburg, Maryland.
Highs may reach 91 in Seattle on July 13, MDA said.
For July 16, the normal average temperature in New York is 78 degrees, MDA said. It’s 74 in Chicago and Boston, 80 in St. Louis, 86 in Dallas, 66 in Seattle and 75 in Burbank, California.