The conversion

170°C = 338°F

°F = (°C × 9/5) + 32, so (170 × 9/5) + 32 = 338.

170 °C 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.

Celsius to Fahrenheit either side of 170 °C.
CelsiusFahrenheit
165 °C329 °F
166 °C330.8 °F
167 °C332.6 °F
168 °C334.4 °F
169 °C336.2 °F
170 °C338 °F
171 °C339.8 °F
172 °C341.6 °F
173 °C343.4 °F
174 °C345.2 °F
175 °C347 °F

The other direction

338 °F converts back to 170 °C, which is the same relationship read the other way. Going from Fahrenheit to Celsius, subtract 32 first and then multiply by 5/9 — doing it in the other order is the usual mistake and produces a plausible-looking wrong answer.

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