Boca raton: Weather Forecast. The warmest day over the next 7 days in Boca raton is forecast to be 20th April at 29°C (84°F) and the warmest night on 18th April at 24°C (75°F). The average temperature over the next 7 days is forecast to be 28°C (82°F) and there will be 5 days of sunshine . The average for April is 0°C (0°F) in Boca raton.