The conversion

650°F = 343.33°C

°C = (°F − 32) × 5/9, so (650 − 32) × 5/9 = 343.33.

650 °F is well outside the range outdoor air occupies on Earth, so there is no useful weather description for it — this page is arithmetic rather than a forecast.

Convert something else

68°F

The range either side

Neighbouring values, for when the number you actually wanted was a degree or two away.

Fahrenheit to Celsius either side of 650 °F.
FahrenheitCelsius
645 °F340.56 °C
646 °F341.11 °C
647 °F341.67 °C
648 °F342.22 °C
649 °F342.78 °C
650 °F343.33 °C
651 °F343.89 °C
652 °F344.44 °C
653 °F345 °C
654 °F345.56 °C
655 °F346.11 °C

The other direction

343.33 °C converts back to 650 °F, which is the same relationship read the other way. Going from Celsius to Fahrenheit, multiply by 9/5 first and then add 32. Adding first is the usual mistake.

The full converter handles any value, in either direction, including kelvin, and shows the formula as it works.