I live in a mild-weather area (typical summer temp about 80F/25C, winter 55F/+15C), but occasionally travel to the mountains where temperatures are below freezing (5F/-15C). The cold temperature causes the tire pressure to drop, sometimes so much that the TPMS warning light goes on. When driving on the highway (even in winter), the tires warm up enough for the warning light to go off again.
Am I supposed to inflate the tires more when traveling to a cold place? My worry is that if I inflate it to 35 psi (my car's recommended pressure) when the car is cold after a freezing night, then the pressure will go way above 35 psi as the car warms up during the day and from highway driving.