Depending on geography, winds can carry warm or cold air and moisture from nearby bodies of water. Or warm dry air from deserts etc.
Where I am located in northern Canada, for example right now, it can be -5c early in the morning and reach +15c by 1pm.
“Chinooks” in Alberta move large masses of warm air over the rockies and can raise the temperature from -20c on a January day to +20c and back down again over the course of a couple of hours.
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