UPDATE: Dulles Town Center also welcomes residents to cool off and recharge their phones at the mall. The shopping center stayed open last night and will again tonight for residents without electricity. Pets in carriers are welcome inside.

Also, Harris Teeter has two Loudoun locations offering ice to residents without electricity:

• Ashbrook Commons Plaza Harris Teeter, #242: 20070 Ashbrook Commons Plaza in Ashburn, Va. 
• Purcellville Gateway Harris Teeter, #388: 105 Purcellville Gateway Drive in Purcellville, Va. 

Initial story:

The National Weather Service reports that the heat index values are likely to reach up to 102 degrees again Sunday, July 1, in Loudoun County and the surrounding region.

While actual temperatures will be lower than Friday’s heat, the weather service reports that the combination of heat and humidity will create the higher heat index in the 100- to 102-degree range. In addition, multiple days of excessive heat can have a cumulative affect on the body.

With more than 260,000 Dominion and NOVEC customers still without power in the region, and may thousands of those in Loudoun County, the heat has an increased impact on many residents who may need to seek shelter.

Continue to follow excessive heat tips and head for a local business that’s open or one of the Loudoun cooling shelters open Sunday:

• Claude Moore Recreation Center, 46111 Loudoun Park Lane, Sterling
• Douglass Community Center, 405 E. Market St., Leesburg
• Sterling Community Center, 120 Enterprise St., Sterling
• Lovettsville Community Center, 57 E. Broad Way, Lovettsville

Loudoun's Chapter of the Red Cross announces the opening of a cooling center at Galilee United Methodist Church, 45325 Winding Road in Sterling. The church will be open for residents on Sunday, July 1 until 7 p.m., Monday, July 2 from 10 a.m. until 6 p.m. and Tuesday, July 3 from 10 a.m. until 6 p.m.

County Libraries are open, as scheduled, but due to the widespread power outages, please check with your local branch to ensure they are open before visiting. For location information, visit http://library.loudoun.gov.

Residents are also encouraged to seek shelter during the heat with friends, family or neighbors. Residents are reminded to take steps to prevent heat-related illnesses, injuries and deaths during this period of excessive heat. For more information, go to www.loudoun.gov/heat.

Weather conditions are expected to gradually improve, with heat index values expected to max out in the mid-90s Monday and Tuesday, according to the weather service.