A heat advisory is in effect for the Houston-area on Tuesday until 7 p.m. with highs expected to read mid-to-upper 90s. FOX 26 Meteorologists say some scattered showers could be expected, but it will still be muggy and humid with many students returning to school. DOWNLOAD THE FOX 26 HOUSTON WEATHER APP BY CLICKING HEREThere are more than 90 cooling centers being opened by the City of Houston for those who need a cool place to escape the heat. Anderson Family YMCAAddress: 705 Cavalcade St., Houston, TX 77009Hours: 5am-9pmHarriet and Joe Foster Family YMCAAddress: 1234 W 34th St., Houston, TX 77018Hours: 5am-9pmHouston Texans YMCAAddress: 5202 Griggs Rd., Houston, TX 77021Hours: 5am-9pmWeekley Family YMCAAddress: 7101 Stella Link Rd., Houston, TX 77025Hours: 5am-9pmBrenda and John Duncan YMCAAddress: 10655 Clay Rd., Houston, TX 77041Hours: 5am-9pmWendel D. Ley Family YMCAAddress: 15055 Wallisville Rd., Houston, TX 77049Hours: 5am-10pmTrotter Family YMCAAddress: 1331 Augusta Dr., Houston, TX 77057Hours: 5am-9pmD. Bradley McWilliams YMCA at Cypress CreekAddress: 19915 S.H. 249, Houston, TX 77070Hours: 5am-10amAlief Family YMCAAddress: 7850 Howell Sugarland Rd., Houston, TX 77083Hours: 6am-8pmWest Orem Family YMCAAddress: 5801 W Orem Dr., Houston, TX 77085Hours: 7am-1pm & 5-8pmLangham Creek Family YMCAAddress: 16725 Longenbaugh Dr., Houston, TX 77095Hours: 5am-9pmLake Houston Family YMCAAddress: 2420 W Lake Houston Pkwy, Houston, TX 77339Hours: 5am-10pmHolcomb Family YMCA