Fahrenheit is primarily used in the United States, where metric Celsius is less common. Tourists were surprised that the US forecast was in Fahrenheit.
Pro Tip 2/3
Weather Reports
In US media, temperatures for weather forecasts are given in Fahrenheit degrees. The news said it would be a scorching 104 degrees Fahrenheit tomorrow.
Pro Tip 3/3
Freezing Point
Remember, water freezes at 32°F, not 0. This differs from Celsius, where water freezes at 0°C. The lake will freeze once the temperature drops to 32 degrees Fahrenheit or below.