According to the National Meteorological Institute (IMN), the country can expect heavy rainfall throughout Saturday afternoon and evening, into Sunday.
Costa Rica President Luis Guillermo Solís spoke Monday at Washington D.C.'s Wilson Center about the country's growing role in hosting migrants and refugees.
Around 1,200 Cubans are still holed up in a 2,000 square-foot (200-square-meter) warehouse on private property. Colombian authorities are waiting for a court permit to remove the migrants.
Colombia has deported more than 5,800 migrants over the past two months, most of them from Haiti and Cuba, according to official figures released last week.