Above-average weather forecast for much of US

Arctic cold front will bring temperatures back down later in the week

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Above-average temperatures are forecast for much of the country today with the exception of the Northern Tier, where cold air still hangs on with periods of light snow. 

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U.S. forecast highs

U.S. forecast highs (Credit: Fox News)

An arctic cold front will start to bring temperatures back down again later this week. 

Western rain forecast

Western rain forecast (Credit: Fox News)

Rounds of heavy rain and mountain snow will move in as far south as California on Friday.

Western snow forecast

Western snow forecast (Credit: Fox News)

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The system will then spread towards the Rockies and the Plains over the weekend.