ElI5: How does the weather change 20 degrees within one day?

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Just something that interested me. I live in an area that dropped from the 60s to the 40s in one night, and, two weeks later, rose back into the 60s, again, literally overnight. How does this happen?

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Anonymous 0 Comments

Most of these answers are missing the key factor – weather and in particular temperature is not something that belongs to one place, weather patterns move. Temperature can be driven by the temperature of the air – and the air moves. If it is 60 degrees F and suddenly a colder air mass moves in and pushes the warm air away, the temperature at that location will fall to the temperature of the new air mass. Most extreme rapid swings are a result of hotter or colder masses of air displacing an existing weather pattern.

One example of this is the Polar Vortex weather patterns in the Midwest US where the cold air from the poles dipped down and covered the midwest due to changes in the atmosphere like the jet stream moving etc.

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