weather in niagara
Weather & Climate in Niagara Falls. Spring. In the spring, the daily high temperatures in March, April and May range from 5Â° to 19Â° degrees Celsius (41Â° â 66Â° degrees Fahrenheit). Nightly temperatures range from -3Â° to 8Â° degrees Celsius (26Âº to 46Â° degrees Fahrenheit).