There can be some issues, most often with lubrication. Extreme cold congeals oil-based lubes which can affect cycling; to avoid this you can use a thinner oil and apply more frequently, use a dry lube, or believe it or not you cansometimes add ethylene glycol to the oil with similar effect as to water. Try this in a small glass and see ifthe two actuallymix (emulsification is not good enough); not all oils will.
If it's below freezing and precipitating, keep the weapon covered, or you may find the slide is frozen to the frame just like your car doors ice shut. If you can OC but not CC that means finding a pouch holster with aflapinstead of a strap, making it very clear you are carrying while completelysheltering the weapon.
Watch your ammo in extreme cold weather (-20o
F and colder); the stuff's designed to be weatherproof and work in any condition, but if it gets too cold it can affect powder ignition. That's generally only a problem at night in the far north or when attacking Moscow in the winter:quirky.
Lastly, avoid rapid fire of a cold weapon. The sudden temperature change causes uneven expansion of metal causing jams and possibly cracks and warpage. outright overpressure failure of a weapon due to extreme cold happens largelyin EXTREME cold (-70 or below); you generally can only make a gun shatter by immersing it in liquid nitrogen.