The National Weather Service has issued a heat advisory from 11 a.m. until 9 p.m. today. Heat index values are forecast to be around 105 degrees and temperatures will be in the upper 90s to 100 degrees.

The Charles County commissioners are reminding citizens that the public buildings listed below are open during regular business hours for use by residents as cooling centers during the extreme heat:

Capital Clubhouse, 3033 Waldorf Market Place, Waldorf, open 9 a.m. to 9 p.m.

Nanjemoy Community Center, 4375 Port Tobacco Road, Nanjemoy, Open 8:30 a.m. to 4:30 p.m.

Charles County Public Libraries, all branches open 9 a.m.-8 p.m., La Plata Branch, 2 Garrett Ave.; P.D. Brown Memorial Branch, 50 Village St., Waldorf; Potomac Branch, 3225 Ruth B. Swan Drive, Indian Head

Outdoor pools are open noon-8 p.m. at La Plata High School at 6035 Radio Station Road in La Plata, Maurice J. McDonough High School at 7165 Marshall Corner Road in Pomfret, and Thomas Stone High School at 3785 Leonardtown Road in Waldorf.

Indoor pools are open noon-5 p.m. at North Point HIgh School at 2500 Davis Road in Waldorf and Henry E. Lackey High School at 3000 Chicamuxen Road in Indian Head.

Daily pool admission is free for kids 2 and younger; $4 for ages 3 to 12; $5 for ages 13 to 59; and $4 for ages 60 and older. On heat advisory, heat warning, or code red air quality index days, the Department of Community Services will offer reduced pool admission fees of $2 for all age levels from 3 p.m. to close on weekdays and noon to close on weekends.

With the extremely hot weather forecast for Charles County, the combination of hot temperatures and high humidity may combine to create a situation in which heat illnesses are possible.