 The city has issued a code red extreme heat alert, at least through Saturday. That says the heat index is expected to hit more than 100 degrees. The park pools will be open from 11 a.m. to 8.30 at night. Neighborhood pools will be open from noon to 7 p.m. Druid Hill Pool will close early tomorrow, but that's because the city is hosting its first pool party for teens. That pool party kicks off at 6 o'clock tonight at the Druid Hill Park Pool, says Josiah Smith with Baltimore City Rec and Parks.